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  1. _quarto.yml +12 -8
  2. cw001evenodd.html +561 -0
  3. cw002multiply.html +542 -0
  4. cw003countsheep.html +545 -0
  5. cw004reducegrow.html +539 -0
  6. cw005make_negative.html +542 -0
  7. cw006positive_sum.html +552 -0
  8. index.html +18 -8
_quarto.yml CHANGED
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  - index.qmd
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- - evenodd.qmd
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- - multiply.qmd
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- - countsheep.qmd
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- - reducegrow.qmd
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- - make_negative.qmd
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- - positive_sum.qmd
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- - references.qmd
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  bibliography: references.bib
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-
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  theme: cosmo
 
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  author: "Aep Hidayatuloh"
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  date: last-modified
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+ repo-url: https://huggingface.co/spaces/aephidayatuloh/codewars2024/tree/main
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  chapters:
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  - index.qmd
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+ - cw001evenodd.qmd
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+ - cw002multiply.qmd
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+ - cw003countsheep.qmd
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+ - cw004reducegrow.qmd
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+ - cw005make_negative.qmd
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+ - cw006positive_sum.qmd
 
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  bibliography: references.bib
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+
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  format:
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  html:
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  theme: cosmo
cw001evenodd.html ADDED
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+ <!DOCTYPE html>
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+ <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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+ <title>Codewars Challenge 2024 Menggunakan R dan RStudio - 1&nbsp; Even or Odd</title>
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+ <style>
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+ pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
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+ -ms-user-select: none; user-select: none;
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+ padding: 0 4px; width: 4em;
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+ }
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+ pre.numberSource { margin-left: 3em; padding-left: 4px; }
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+ div.sourceCode
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+ { }
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+ @media screen {
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+
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+ <script src="site_libs/quarto-search/quarto-search.js"></script>
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+ <meta name="quarto:offset" content="./">
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+ <link href="./cw002multiply.html" rel="next">
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+ <link href="./index.html" rel="prev">
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+ <link href="./logo.png" rel="icon" type="image/png">
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+ <script src="site_libs/quarto-html/quarto.js"></script>
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+ <script src="site_libs/quarto-html/popper.min.js"></script>
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+ <script src="site_libs/quarto-html/tippy.umd.min.js"></script>
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+ <script src="site_libs/bootstrap/bootstrap.min.js"></script>
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+ <link href="site_libs/bootstrap/bootstrap-icons.css" rel="stylesheet">
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+ <link href="site_libs/quarto-contrib/badge/badge.css" rel="stylesheet">
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+ <script id="quarto-search-options" type="application/json">{
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+ "search-submit-button-title": "Submit",
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+ <meta name="twitter:title" content="Codewars Challenge 2024 Menggunakan R dan RStudio - 1&nbsp; Even or Odd">
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+ <meta name="twitter:description" content="">
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+ <meta name="twitter:image-height" content="434">
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+ <meta name="twitter:image-width" content="1946">
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+ <meta name="twitter:card" content="summary_large_image">
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+ </head>
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+
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+ <body class="nav-sidebar floating">
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+
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+ <div id="quarto-search-results"></div>
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+ <header id="quarto-header" class="headroom fixed-top">
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+ <nav class="quarto-secondary-nav">
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+ <div class="container-fluid d-flex">
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+ <button type="button" class="quarto-btn-toggle btn" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
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+ <i class="bi bi-layout-text-sidebar-reverse"></i>
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+ </button>
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+ <nav class="quarto-page-breadcrumbs" aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="./cw001evenodd.html"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></a></li></ol></nav>
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+ <a class="flex-grow-1" role="button" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
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+ <i class="bi bi-search"></i>
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+ </nav>
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+ </header>
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+ <!-- content -->
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+ <div id="quarto-content" class="quarto-container page-columns page-rows-contents page-layout-article">
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+ <!-- sidebar -->
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+ <nav id="quarto-sidebar" class="sidebar collapse collapse-horizontal sidebar-navigation floating overflow-auto">
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+ <div class="pt-lg-2 mt-2 text-left sidebar-header">
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+ <div class="sidebar-title mb-0 py-0">
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+ <a href="./">Codewars Challenge 2024 Menggunakan R dan RStudio</a>
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+ <div class="sidebar-tools-main">
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+ <a href="https://huggingface.co/spaces/aephidayatuloh/codewars2024/tree/main" rel="" title="Source Code" class="quarto-navigation-tool px-1" aria-label="Source Code"><i class="bi bi-git"></i></a>
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+ </div>
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+ </div>
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+ </div>
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+ <div class="mt-2 flex-shrink-0 align-items-center">
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+ <div class="sidebar-search">
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+ <div id="quarto-search" class="" title="Search"></div>
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+ </div>
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+ </div>
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+ <div class="sidebar-menu-container">
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+ <ul class="list-unstyled mt-1">
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./index.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text">Pengantar</span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw001evenodd.html" class="sidebar-item-text sidebar-link active">
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+ <span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw002multiply.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw003countsheep.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw004reducegrow.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw005make_negative.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./cw006positive_sum.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./references.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text">References</span></a>
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+ </div>
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+ </li>
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+ </ul>
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+ </div>
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+ </nav>
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+ <div id="quarto-sidebar-glass" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass"></div>
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+ <!-- margin-sidebar -->
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+ <div id="quarto-margin-sidebar" class="sidebar margin-sidebar">
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+ <nav id="TOC" role="doc-toc" class="toc-active">
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+ <h2 id="toc-title">Table of contents</h2>
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+
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+ <ul>
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+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">1.1</span> Instruction</a></li>
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+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">1.2</span> YouTube Video</a></li>
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+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">1.3</span> Solution Code</a></li>
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+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">1.4</span> Test</a></li>
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+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">1.5</span> Supported by</a></li>
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+ </ul>
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+ </nav>
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+ </div>
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+ <!-- main -->
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+ <main class="content" id="quarto-document-content">
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+
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+ <header id="title-block-header" class="quarto-title-block default">
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+ <div class="quarto-title">
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+ <h1 class="title"><span id="evenodd" class="quarto-section-identifier"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></h1>
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+ </div>
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+
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+
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+
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+ <div class="quarto-title-meta">
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+
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+
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+
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+
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+ </div>
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+
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+
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+ </header>
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+
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+ <p>Tantangan #1/366 - 15 Feb 2024</p>
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+ <p><a href="https://www.codewars.com/kata/53da3dbb4a5168369a0000fe/train/r" class="uri">https://www.codewars.com/kata/53da3dbb4a5168369a0000fe/train/r</a></p>
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+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Even or Odd</p>
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+ <section id="instruction" class="level2" data-number="1.1">
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+ <h2 data-number="1.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">1.1</span> Instruction</h2>
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+ <p>Create a function that takes an integer as an argument and returns <code>"Even"</code> for even numbers or <code>"Odd"</code> for odd numbers.</p>
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+ </section>
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+ <section id="youtube-video" class="level2" data-number="1.2">
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+ <h2 data-number="1.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">1.2</span> YouTube Video</h2>
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+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/L8aczEhqymk?si=DSx84acpNvbkucrK" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
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+ </section>
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+ <section id="solution-code" class="level2" data-number="1.3">
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+ <h2 data-number="1.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">1.3</span> Solution Code</h2>
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+ <p>Solusi bar-bar</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>even_or_odd <span class="ot">&lt;-</span> <span class="cf">function</span>(n) {</span>
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+ <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">ifelse</span>(<span class="fu">abs</span>(n<span class="sc">/</span><span class="dv">2</span> <span class="sc">-</span> <span class="fu">as.integer</span>(n<span class="sc">/</span><span class="dv">2</span>)) <span class="sc">==</span> <span class="fl">0.5</span>, <span class="st">"Odd"</span>, <span class="st">"Even"</span>)</span>
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+ <span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ <p>Solusi simple</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>even_or_odd <span class="ot">&lt;-</span> <span class="cf">function</span>(n) {</span>
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+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="co"># %% operator modulo</span></span>
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+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">ifelse</span>(n <span class="sc">%%</span> <span class="dv">2</span> <span class="sc">==</span> <span class="dv">1</span>, <span class="st">"Odd"</span>, <span class="st">"Even"</span>)</span>
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+ <span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>even_or_odd <span class="ot">&lt;-</span> <span class="cf">function</span>(n) <span class="fu">c</span>(<span class="st">"Even"</span>, <span class="st">"Odd"</span>)[n <span class="sc">%%</span> <span class="dv">2</span> <span class="sc">+</span> <span class="dv">1</span>]</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ </section>
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+ <section id="test" class="level2" data-number="1.4">
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+ <h2 data-number="1.4" class="anchored" data-anchor-id="test"><span class="header-section-number">1.4</span> Test</h2>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
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+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'even_or_odd(1) returns "Odd"'</span>, {</span>
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+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">even_or_odd</span>(<span class="dv">1</span>), <span class="st">"Odd"</span>)</span>
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+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ <div class="cell-output cell-output-stdout">
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+ <pre><code>Test passed 🥳</code></pre>
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+ </div>
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+ <div class="sourceCode cell-code" id="cb6"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'even_or_odd(2) returns "Even"'</span>, {</span>
274
+ <span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">even_or_odd</span>(<span class="dv">2</span>), <span class="st">"Even"</span>)</span>
275
+ <span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
276
+ <div class="cell-output cell-output-stdout">
277
+ <pre><code>Test passed 🎉</code></pre>
278
+ </div>
279
+ <div class="sourceCode cell-code" id="cb8"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'even_or_odd(0) returns "Even"'</span>, {</span>
280
+ <span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">even_or_odd</span>(<span class="dv">0</span>), <span class="st">"Even"</span>)</span>
281
+ <span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
282
+ <div class="cell-output cell-output-stdout">
283
+ <pre><code>Test passed 😸</code></pre>
284
+ </div>
285
+ <div class="sourceCode cell-code" id="cb10"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'even_or_odd(-1) returns "Odd"'</span>, {</span>
286
+ <span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">even_or_odd</span>(<span class="sc">-</span><span class="dv">1</span>), <span class="st">"Odd"</span>)</span>
287
+ <span id="cb10-3"><a href="#cb10-3" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
288
+ <div class="cell-output cell-output-stdout">
289
+ <pre><code>Test passed 🥇</code></pre>
290
+ </div>
291
+ <div class="sourceCode cell-code" id="cb12"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'even_or_odd(-2) returns "Even"'</span>, {</span>
292
+ <span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">even_or_odd</span>(<span class="sc">-</span><span class="dv">2</span>), <span class="st">"Even"</span>)</span>
293
+ <span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
294
+ <div class="cell-output cell-output-stdout">
295
+ <pre><code>Test passed 🥳</code></pre>
296
+ </div>
297
+ </div>
298
+ </section>
299
+ <section id="supported-by" class="level2" data-number="1.5">
300
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+ <figure class="figure">
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+ <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p>
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+ <figcaption class="figure-caption">StarCore Analytics</figcaption>
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+ <div class="nav-page nav-page-next">
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+ <a href="./cw002multiply.html" class="pagination-link">
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+ <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
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+
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+ <ul>
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+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">2.1</span> Instruction</a></li>
206
+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">2.2</span> YouTube Video</a></li>
207
+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">2.3</span> Solution Code</a></li>
208
+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">2.4</span> Test</a></li>
209
+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">2.5</span> Supported by</a></li>
210
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+
216
+ <header id="title-block-header" class="quarto-title-block default">
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+ <div class="quarto-title">
218
+ <h1 class="title"><span id="multiply" class="quarto-section-identifier"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></h1>
219
+ </div>
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+
221
+
222
+
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+ <div class="quarto-title-meta">
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+
225
+
226
+
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+
228
+ </div>
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+
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+
231
+ </header>
232
+
233
+ <p>Tantangan #2/366 - 16 Feb 2024</p>
234
+ <p><a href="https://www.codewars.com/kata/50654ddff44f800200000004/train/r" class="uri">https://www.codewars.com/kata/50654ddff44f800200000004/train/r</a></p>
235
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Multiply</p>
236
+ <section id="instruction" class="level2" data-number="2.1">
237
+ <h2 data-number="2.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">2.1</span> Instruction</h2>
238
+ <p>This code does not execute properly. Try to figure out why.</p>
239
+ <pre><code>mul &lt;- function(a, b) {
240
+ a * c # try to figure out why it doesn't work!
241
+ }</code></pre>
242
+ </section>
243
+ <section id="youtube-video" class="level2" data-number="2.2">
244
+ <h2 data-number="2.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">2.2</span> YouTube Video</h2>
245
+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/L8aczEhqymk?si=DSx84acpNvbkucrK" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
246
+ </section>
247
+ <section id="solution-code" class="level2" data-number="2.3">
248
+ <h2 data-number="2.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">2.3</span> Solution Code</h2>
249
+ <p>Karena argumen dari function <code>mul()</code> adalah <code>a</code> dan <code>b</code> sedangkan operasi perkalian di dalamnya menggunakan <code>c</code> yang belum diketahui dan tidak ada objek tersebut.</p>
250
+ <div class="cell">
251
+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>mul <span class="ot">&lt;-</span> <span class="cf">function</span>(a, b) {</span>
252
+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> a <span class="sc">*</span> c <span class="co"># try to figure out why it doesn't work!</span></span>
253
+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
254
+ </div>
255
+ <p>Solusi: ganti objek <code>c</code> di dalam function <code>mul()</code> dengan <code>b</code> dari argumen function tersebut.</p>
256
+ <div class="cell">
257
+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>mul <span class="ot">&lt;-</span> <span class="cf">function</span>(a, b) {</span>
258
+ <span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a> a <span class="sc">*</span> b </span>
259
+ <span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
260
+ </div>
261
+ </section>
262
+ <section id="test" class="level2" data-number="2.4">
263
+ <h2 data-number="2.4" class="anchored" data-anchor-id="test"><span class="header-section-number">2.4</span> Test</h2>
264
+ <div class="cell">
265
+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
266
+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
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+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">"test for associativity of multiplication"</span>, {</span>
268
+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> a <span class="ot">&lt;-</span> <span class="fu">runif</span>(<span class="dv">1</span>, <span class="dv">0</span>, <span class="dv">10000</span>)</span>
269
+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> b <span class="ot">&lt;-</span> <span class="fu">runif</span>(<span class="dv">1</span>, <span class="dv">0</span>, <span class="dv">10000</span>)</span>
270
+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> c <span class="ot">&lt;-</span> <span class="fu">runif</span>(<span class="dv">1</span>, <span class="dv">0</span>, <span class="dv">10000</span>)</span>
271
+ <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">mul</span>(a, b), a <span class="sc">*</span> b)</span>
272
+ <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">mul</span>(<span class="fu">mul</span>(a, b), c), a <span class="sc">*</span> b <span class="sc">*</span> c)</span>
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+ <span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">mul</span>(a, <span class="fu">mul</span>(b, c)), a <span class="sc">*</span> b <span class="sc">*</span> c)</span>
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+ <span id="cb4-10"><a href="#cb4-10" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
275
+ <div class="cell-output cell-output-stdout">
276
+ <pre><code>Test passed 😀</code></pre>
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+ </div>
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+ </div>
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+ </section>
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+ <section id="supported-by" class="level2" data-number="2.5">
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+ <h2 data-number="2.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">2.5</span> Supported by</h2>
282
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+ <ul>
205
+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">3.1</span> Instruction</a></li>
206
+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">3.2</span> YouTube Video</a></li>
207
+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">3.3</span> Solution Code</a></li>
208
+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">3.4</span> Test</a></li>
209
+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">3.5</span> Supported by</a></li>
210
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+
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217
+ <div class="quarto-title">
218
+ <h1 class="title"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></h1>
219
+ </div>
220
+
221
+
222
+
223
+ <div class="quarto-title-meta">
224
+
225
+
226
+
227
+
228
+ </div>
229
+
230
+
231
+ </header>
232
+
233
+ <p>Tantangan #3/366 - 17 Feb 2024</p>
234
+ <p><a href="https://www.codewars.com/kata/5b077ebdaf15be5c7f000077/train/r" class="uri">https://www.codewars.com/kata/5b077ebdaf15be5c7f000077/train/r</a></p>
235
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> If you can’t sleep, just count sheep!!</p>
236
+ <section id="instruction" class="level2" data-number="3.1">
237
+ <h2 data-number="3.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">3.1</span> Instruction</h2>
238
+ <p>Given a non-negative integer, 3 for example, return a string with a murmur: “1 sheep…2 sheep…3 sheep…”. Input will always be valid, i.e.&nbsp;no negative integers.</p>
239
+ </section>
240
+ <section id="youtube-video" class="level2" data-number="3.2">
241
+ <h2 data-number="3.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">3.2</span> YouTube Video</h2>
242
+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/L8aczEhqymk?si=DSx84acpNvbkucrK" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
243
+ </section>
244
+ <section id="solution-code" class="level2" data-number="3.3">
245
+ <h2 data-number="3.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">3.3</span> Solution Code</h2>
246
+ <p>Solusi bar-bar</p>
247
+ <div class="cell">
248
+ <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>countSheep <span class="ot">&lt;-</span> <span class="cf">function</span>(num){</span>
249
+ <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span>(num <span class="sc">==</span> <span class="dv">0</span>){</span>
250
+ <span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">return</span>(<span class="st">""</span>)</span>
251
+ <span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a> } <span class="cf">else</span> {</span>
252
+ <span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a> result <span class="ot">&lt;-</span> <span class="st">""</span></span>
253
+ <span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a> <span class="cf">for</span>(i <span class="cf">in</span> <span class="dv">1</span><span class="sc">:</span>num){</span>
254
+ <span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a> result <span class="ot">&lt;-</span> <span class="fu">paste</span>(result, i, <span class="st">" sheep..."</span>, <span class="at">sep =</span> <span class="st">""</span>)</span>
255
+ <span id="cb1-8"><a href="#cb1-8" aria-hidden="true" tabindex="-1"></a> }</span>
256
+ <span id="cb1-9"><a href="#cb1-9" aria-hidden="true" tabindex="-1"></a> <span class="fu">return</span>(result)</span>
257
+ <span id="cb1-10"><a href="#cb1-10" aria-hidden="true" tabindex="-1"></a> }</span>
258
+ <span id="cb1-11"><a href="#cb1-11" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
259
+ </div>
260
+ <p>Solusi simple</p>
261
+ <div class="cell">
262
+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>countSheep <span class="ot">&lt;-</span> <span class="cf">function</span>(num){</span>
263
+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">ifelse</span>(num <span class="sc">==</span> <span class="dv">0</span>, <span class="st">""</span>, <span class="fu">paste</span>(<span class="dv">1</span><span class="sc">:</span>num, <span class="st">"sheep..."</span>, <span class="at">collapse =</span> <span class="st">""</span>))</span>
264
+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
265
+ </div>
266
+ </section>
267
+ <section id="test" class="level2" data-number="3.4">
268
+ <h2 data-number="3.4" class="anchored" data-anchor-id="test"><span class="header-section-number">3.4</span> Test</h2>
269
+ <div class="cell">
270
+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
271
+ <span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a></span>
272
+ <span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">"Fixed tests"</span>, {</span>
273
+ <span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">countSheep</span>(<span class="dv">0</span>), <span class="st">""</span>)</span>
274
+ <span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">countSheep</span>(<span class="dv">1</span>), <span class="st">"1 sheep..."</span>)</span>
275
+ <span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">countSheep</span>(<span class="dv">2</span>), <span class="st">"1 sheep...2 sheep..."</span>)</span>
276
+ <span id="cb3-7"><a href="#cb3-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">countSheep</span>(<span class="dv">3</span>), <span class="st">"1 sheep...2 sheep...3 sheep..."</span>)</span>
277
+ <span id="cb3-8"><a href="#cb3-8" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
278
+ <div class="cell-output cell-output-stdout">
279
+ <pre><code>Test passed 😀</code></pre>
280
+ </div>
281
+ </div>
282
+ </section>
283
+ <section id="supported-by" class="level2" data-number="3.5">
284
+ <h2 data-number="3.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">3.5</span> Supported by</h2>
285
+ <div class="quarto-figure quarto-figure-center">
286
+ <figure class="figure">
287
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+ <div class="sidebar-item-container">
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+ <a href="./cw006positive_sum.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
187
+ </div>
188
+ </li>
189
+ <li class="sidebar-item">
190
+ <div class="sidebar-item-container">
191
+ <a href="./references.html" class="sidebar-item-text sidebar-link">
192
+ <span class="menu-text">References</span></a>
193
+ </div>
194
+ </li>
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+ </ul>
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+ </div>
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+ </nav>
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+ <div id="quarto-sidebar-glass" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass"></div>
199
+ <!-- margin-sidebar -->
200
+ <div id="quarto-margin-sidebar" class="sidebar margin-sidebar">
201
+ <nav id="TOC" role="doc-toc" class="toc-active">
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+ <h2 id="toc-title">Table of contents</h2>
203
+
204
+ <ul>
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+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">4.1</span> Instruction</a></li>
206
+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">4.2</span> YouTube Video</a></li>
207
+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">4.3</span> Solution Code</a></li>
208
+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">4.4</span> Test</a></li>
209
+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">4.5</span> Supported by</a></li>
210
+ </ul>
211
+ </nav>
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+ </div>
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+ <!-- main -->
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+ <main class="content" id="quarto-document-content">
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+
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+ <header id="title-block-header" class="quarto-title-block default">
217
+ <div class="quarto-title">
218
+ <h1 class="title"><span id="reducegrow" class="quarto-section-identifier"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></h1>
219
+ </div>
220
+
221
+
222
+
223
+ <div class="quarto-title-meta">
224
+
225
+
226
+
227
+
228
+ </div>
229
+
230
+
231
+ </header>
232
+
233
+ <p>Tantangan #4/366 - 15 Feb 2024</p>
234
+ <p><a href="https://www.codewars.com/kata/57f780909f7e8e3183000078/train/r" class="uri">https://www.codewars.com/kata/57f780909f7e8e3183000078/train/r</a></p>
235
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Beginner - Reduce but Grow</p>
236
+ <section id="instruction" class="level2" data-number="4.1">
237
+ <h2 data-number="4.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">4.1</span> Instruction</h2>
238
+ <p>Given a non-empty array of integers, return the result of multiplying the values together in order. Example:</p>
239
+ <pre><code>[1, 2, 3, 4] =&gt; 1 * 2 * 3 * 4 = 24</code></pre>
240
+ </section>
241
+ <section id="youtube-video" class="level2" data-number="4.2">
242
+ <h2 data-number="4.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">4.2</span> YouTube Video</h2>
243
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244
+ </section>
245
+ <section id="solution-code" class="level2" data-number="4.3">
246
+ <h2 data-number="4.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">4.3</span> Solution Code</h2>
247
+ <p>Solusi bar-bar</p>
248
+ <div class="cell">
249
+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>grow <span class="ot">&lt;-</span> <span class="cf">function</span>(arr) {</span>
250
+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> result <span class="ot">&lt;-</span> <span class="dv">1</span></span>
251
+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">for</span>(i <span class="cf">in</span> arr){</span>
252
+ <span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> result <span class="ot">&lt;-</span> result <span class="sc">*</span> i</span>
253
+ <span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a> }</span>
254
+ <span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">return</span>(result)</span>
255
+ <span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
256
+ </div>
257
+ <p>Solusi simple</p>
258
+ <div class="cell">
259
+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="co"># grow &lt;- function(arr) prod(arr)</span></span>
260
+ <span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>grow <span class="ot">&lt;-</span> prod</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
261
+ </div>
262
+ </section>
263
+ <section id="test" class="level2" data-number="4.4">
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+ <div class="cell">
266
+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
267
+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">"basic tests"</span>, {</span>
268
+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">grow</span>(<span class="fu">c</span>(<span class="dv">1</span>, <span class="dv">2</span>, <span class="dv">3</span>)), <span class="dv">6</span>)</span>
269
+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">grow</span>(<span class="fu">c</span>(<span class="dv">4</span>, <span class="dv">1</span>, <span class="dv">1</span>, <span class="dv">1</span>, <span class="dv">4</span>)), <span class="dv">16</span>)</span>
270
+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">grow</span>(<span class="fu">c</span>(<span class="dv">2</span>, <span class="dv">2</span>, <span class="dv">2</span>, <span class="dv">2</span>, <span class="dv">2</span>, <span class="dv">2</span>)), <span class="dv">64</span>)</span>
271
+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
272
+ <div class="cell-output cell-output-stdout">
273
+ <pre><code>Test passed 🎉</code></pre>
274
+ </div>
275
+ </div>
276
+ </section>
277
+ <section id="supported-by" class="level2" data-number="4.5">
278
+ <h2 data-number="4.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">4.5</span> Supported by</h2>
279
+ <div class="quarto-figure quarto-figure-center">
280
+ <figure class="figure">
281
+ <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p>
282
+ <figcaption class="figure-caption">StarCore Analytics</figcaption>
283
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284
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+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">5.1</span> Instruction</a></li>
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+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">5.3</span> Solution Code</a></li>
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+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">5.4</span> Test</a></li>
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+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">5.5</span> Supported by</a></li>
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+ <h1 class="title"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></h1>
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+ </div>
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+
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+
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+
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+ <div class="quarto-title-meta">
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+
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+
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+
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+ </header>
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+
233
+ <p>Tantangan #5/366 - 18 Feb 2024</p>
234
+ <p><a href="https://www.codewars.com/kata/55685cd7ad70877c23000102/train/r" class="uri">https://www.codewars.com/kata/55685cd7ad70877c23000102/train/r</a></p>
235
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Return Negative</p>
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+ <section id="instruction" class="level2" data-number="5.1">
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+ <h2 data-number="5.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">5.1</span> Instruction</h2>
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+ <p>In this simple assignment you are given a number and have to make it negative. But maybe the number is already negative?</p>
239
+ <p>Examples</p>
240
+ <pre><code>make_negative(1); # return -1
241
+ make_negative(-5); # return -5
242
+ make_negative(0); # return 0</code></pre>
243
+ <p><strong>Notes</strong><br>
244
+ The number can be negative already, in which case no change is required. Zero (0) is not checked for any specific sign. Negative zeros make no mathematical sense.</p>
245
+ </section>
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+ <section id="youtube-video" class="level2" data-number="5.2">
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+ <h2 data-number="5.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">5.2</span> YouTube Video</h2>
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+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/L8aczEhqymk?si=DSx84acpNvbkucrK" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
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+ </section>
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+ <section id="solution-code" class="level2" data-number="5.3">
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+ <h2 data-number="5.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">5.3</span> Solution Code</h2>
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+ <p>Solusi bar-bar</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>make_negative <span class="ot">&lt;-</span> <span class="cf">function</span>(num){</span>
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+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">ifelse</span>(num <span class="sc">&lt;=</span> <span class="dv">0</span>, num, <span class="sc">-</span><span class="dv">1</span><span class="sc">*</span>num)</span>
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+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ <p>Solusi simple</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>make_negative <span class="ot">&lt;-</span> <span class="cf">function</span>(num)<span class="sc">-</span><span class="fu">abs</span>(num)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
261
+ </div>
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+ </section>
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+ <section id="test" class="level2" data-number="5.4">
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+ <h2 data-number="5.4" class="anchored" data-anchor-id="test"><span class="header-section-number">5.4</span> Test</h2>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
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+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
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+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'Basic tests'</span>, {</span>
269
+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">42</span>), <span class="sc">-</span><span class="dv">42</span>)</span>
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+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="sc">-</span><span class="dv">9</span>), <span class="sc">-</span><span class="dv">9</span>)</span>
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+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">0</span>), <span class="dv">0</span>)</span>
272
+ <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">1</span>), <span class="sc">-</span><span class="dv">1</span>)</span>
273
+ <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="sc">-</span><span class="dv">1</span>), <span class="sc">-</span><span class="dv">1</span>)</span>
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+ <span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ <div class="cell-output cell-output-stdout">
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+ <pre><code>Test passed 😀</code></pre>
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+ </div>
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+ </div>
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+ </section>
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+ <section id="supported-by" class="level2" data-number="5.5">
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+ <h2 data-number="5.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">5.5</span> Supported by</h2>
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+ <a href="./cw001evenodd.html" class="sidebar-item-text sidebar-link">
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+ <h2 id="toc-title">Table of contents</h2>
203
+
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+ <ul>
205
+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">6.1</span> Instruction</a></li>
206
+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">6.2</span> YouTube Video</a></li>
207
+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">6.3</span> Solution Code</a></li>
208
+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">6.4</span> Test</a></li>
209
+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">6.5</span> Supported by</a></li>
210
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218
+ <h1 class="title"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></h1>
219
+ </div>
220
+
221
+
222
+
223
+ <div class="quarto-title-meta">
224
+
225
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+ </div>
229
+
230
+
231
+ </header>
232
+
233
+ <p>Tantangan #6/366 - 19 Feb 2024</p>
234
+ <p><a href="https://www.codewars.com/kata/5715eaedb436cf5606000381/train/r" class="uri">https://www.codewars.com/kata/5715eaedb436cf5606000381/train/r</a></p>
235
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Sum of positive</p>
236
+ <section id="instruction" class="level2" data-number="6.1">
237
+ <h2 data-number="6.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">6.1</span> Instruction</h2>
238
+ <p>You get an array of numbers, return the sum of all of the positives ones.</p>
239
+ <p>Example <code>[1,-4,7,12]</code> =&gt; <code>1 + 7 + 12 = 20</code></p>
240
+ <p>Note: if there is nothing to sum, the sum is default to 0.</p>
241
+ </section>
242
+ <section id="youtube-video" class="level2" data-number="6.2">
243
+ <h2 data-number="6.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">6.2</span> YouTube Video</h2>
244
+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/xCvHwR52p4k?si=yoLfpHfcIBYk0j9c" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
245
+ </section>
246
+ <section id="solution-code" class="level2" data-number="6.3">
247
+ <h2 data-number="6.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">6.3</span> Solution Code</h2>
248
+ <p>Solusi bar-bar</p>
249
+ <div class="cell">
250
+ <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec){</span>
251
+ <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>()</span>
252
+ <span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">for</span>(i <span class="cf">in</span> vec){</span>
253
+ <span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span>(i <span class="sc">&gt;</span> <span class="dv">0</span>){</span>
254
+ <span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>(pos_vec, i)</span>
255
+ <span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a> } <span class="cf">else</span> {</span>
256
+ <span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>(pos_vec, <span class="dv">0</span>)</span>
257
+ <span id="cb1-8"><a href="#cb1-8" aria-hidden="true" tabindex="-1"></a> } </span>
258
+ <span id="cb1-9"><a href="#cb1-9" aria-hidden="true" tabindex="-1"></a> }</span>
259
+ <span id="cb1-10"><a href="#cb1-10" aria-hidden="true" tabindex="-1"></a> <span class="fu">return</span>(<span class="fu">sum</span>(pos_vec))</span>
260
+ <span id="cb1-11"><a href="#cb1-11" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
261
+ </div>
262
+ <p>Solusi simple</p>
263
+ <div class="cell">
264
+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec){</span>
265
+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> vec[vec <span class="sc">&lt;</span> <span class="dv">0</span>] <span class="ot">&lt;-</span> <span class="dv">0</span></span>
266
+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">sum</span>(vec)</span>
267
+ <span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
268
+ </div>
269
+ <div class="cell">
270
+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec)<span class="fu">sum</span>(vec[vec<span class="sc">&gt;</span><span class="dv">0</span>])</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
271
+ </div>
272
+ </section>
273
+ <section id="test" class="level2" data-number="6.4">
274
+ <h2 data-number="6.4" class="anchored" data-anchor-id="test"><span class="header-section-number">6.4</span> Test</h2>
275
+ <div class="cell">
276
+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
277
+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
278
+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'Basic tests'</span>, {</span>
279
+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="dv">1</span>,<span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="dv">5</span>)),<span class="dv">15</span>)</span>
280
+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="dv">1</span>,<span class="sc">-</span><span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="dv">5</span>)),<span class="dv">13</span>)</span>
281
+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="sc">-</span><span class="dv">1</span>,<span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="sc">-</span><span class="dv">5</span>)),<span class="dv">9</span>)</span>
282
+ <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>()),<span class="dv">0</span>)</span>
283
+ <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="sc">-</span><span class="dv">1</span>,<span class="sc">-</span><span class="dv">2</span>,<span class="sc">-</span><span class="dv">3</span>,<span class="sc">-</span><span class="dv">4</span>,<span class="sc">-</span><span class="dv">5</span>)),<span class="dv">0</span>)</span>
284
+ <span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
285
+ <div class="cell-output cell-output-stdout">
286
+ <pre><code>Test passed 😸</code></pre>
287
+ </div>
288
+ </div>
289
+ </section>
290
+ <section id="supported-by" class="level2" data-number="6.5">
291
+ <h2 data-number="6.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">6.5</span> Supported by</h2>
292
+ <div class="quarto-figure quarto-figure-center">
293
+ <figure class="figure">
294
+ <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p>
295
+ <figcaption class="figure-caption">StarCore Analytics</figcaption>
296
+ </figure>
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+ </div>
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+
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+
300
+ </section>
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+
302
+ </main> <!-- /main -->
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+ <script id="quarto-html-after-body" type="application/javascript">
304
+ window.document.addEventListener("DOMContentLoaded", function (event) {
305
+ const toggleBodyColorMode = (bsSheetEl) => {
306
+ const mode = bsSheetEl.getAttribute("data-mode");
307
+ const bodyEl = window.document.querySelector("body");
308
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309
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310
+ bodyEl.classList.remove("quarto-light");
311
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312
+ bodyEl.classList.add("quarto-light");
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+ bodyEl.classList.remove("quarto-dark");
314
+ }
315
+ }
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+ const toggleBodyColorPrimary = () => {
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318
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320
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321
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324
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325
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326
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327
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328
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330
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331
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332
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333
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334
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335
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336
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337
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338
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339
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340
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341
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342
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343
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344
+ }
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+ }
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+ return codeEl.innerText;
347
+ }
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+ });
349
+ clipboard.on('success', function(e) {
350
+ // button target
351
+ const button = e.trigger;
352
+ // don't keep focus
353
+ button.blur();
354
+ // flash "checked"
355
+ button.classList.add('code-copy-button-checked');
356
+ var currentTitle = button.getAttribute("title");
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+ button.setAttribute("title", "Copied!");
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+ let tooltip;
359
+ if (window.bootstrap) {
360
+ button.setAttribute("data-bs-toggle", "tooltip");
361
+ button.setAttribute("data-bs-placement", "left");
362
+ button.setAttribute("data-bs-title", "Copied!");
363
+ tooltip = new bootstrap.Tooltip(button,
364
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365
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366
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367
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368
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370
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374
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+ }
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+ button.setAttribute("title", currentTitle);
377
+ button.classList.remove('code-copy-button-checked');
378
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380
+ e.clearSelection();
381
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383
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384
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385
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386
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387
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388
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389
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390
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400
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401
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402
+ tippyHover(ref, function() {
403
+ // use id or data attribute instead here
404
+ let href = ref.getAttribute('data-footnote-href') || ref.getAttribute('href');
405
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406
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407
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408
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409
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411
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413
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414
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415
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416
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419
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432
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443
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479
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480
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487
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+ clickedEl.classList.add('code-annotation-active');
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531
+ });
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+ }
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536
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537
+ <div class="nav-page nav-page-previous">
538
+ <a href="./cw005make_negative.html" class="pagination-link">
539
+ <i class="bi bi-arrow-left-short"></i> <span class="nav-page-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span>
540
+ </a>
541
+ </div>
542
+ <div class="nav-page nav-page-next">
543
+ <a href="./references.html" class="pagination-link">
544
+ <span class="nav-page-text">References</span> <i class="bi bi-arrow-right-short"></i>
545
+ </a>
546
+ </div>
547
+ </nav>
548
+ </div> <!-- /content -->
549
+
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+
551
+
552
+ </body></html>
index.html CHANGED
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- <link href="./evenodd.html" rel="next">
 
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  <script src="site_libs/quarto-html/quarto.js"></script>
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  <script src="site_libs/quarto-html/popper.min.js"></script>
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@@ -63,6 +64,12 @@ ul.task-list li input[type="checkbox"] {
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@@ -90,6 +97,9 @@ ul.task-list li input[type="checkbox"] {
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  <div class="pt-lg-2 mt-2 text-left sidebar-header">
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  <div class="sidebar-title mb-0 py-0">
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  <a href="./">Codewars Challenge 2024 Menggunakan R dan RStudio</a>
 
 
 
93
  </div>
94
  </div>
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  <div class="mt-2 flex-shrink-0 align-items-center">
@@ -107,37 +117,37 @@ ul.task-list li input[type="checkbox"] {
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  </li>
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
110
- <a href="./evenodd.html" class="sidebar-item-text sidebar-link">
111
  <span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></a>
112
  </div>
113
  </li>
114
  <li class="sidebar-item">
115
  <div class="sidebar-item-container">
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- <a href="./multiply.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
118
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
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- <a href="./countsheep.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></span></a>
124
  </div>
125
  </li>
126
  <li class="sidebar-item">
127
  <div class="sidebar-item-container">
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- <a href="./reducegrow.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></a>
130
  </div>
131
  </li>
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
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- <a href="./make_negative.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span></a>
136
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
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- <a href="./positive_sum.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
142
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  </li>
@@ -451,7 +461,7 @@ window.document.addEventListener("DOMContentLoaded", function (event) {
451
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456
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457
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+ <link href="./cw001evenodd.html" rel="next">
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  <div class="sidebar-title mb-0 py-0">
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  <a href="./">Codewars Challenge 2024 Menggunakan R dan RStudio</a>
100
+ <div class="sidebar-tools-main">
101
+ <a href="https://huggingface.co/spaces/aephidayatuloh/codewars2024/tree/main" rel="" title="Source Code" class="quarto-navigation-tool px-1" aria-label="Source Code"><i class="bi bi-git"></i></a>
102
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
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+ <a href="./cw001evenodd.html" class="sidebar-item-text sidebar-link">
121
  <span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></a>
122
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123
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  <li class="sidebar-item">
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  <div class="sidebar-item-container">
126
+ <a href="./cw002multiply.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
128
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+ <a href="./cw003countsheep.html" class="sidebar-item-text sidebar-link">
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  <span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></span></a>
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  <span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></a>
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  <span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span></a>
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  <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
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  <span class="nav-page-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span> <i class="bi bi-arrow-right-short"></i>
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