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| <ul> | |
| <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">14.1</span> Instruction</a></li> | |
| <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">14.2</span> YouTube Video</a></li> | |
| <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">14.3</span> Solution Code</a></li> | |
| <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">14.4</span> Test</a></li> | |
| <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">14.5</span> Supported by</a></li> | |
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| <h1 class="title"><span class="chapter-number">14</span> <span class="chapter-title">Grasshopper - Summation</span></h1> | |
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| </header> | |
| <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Tantangan #14/366 - 28 Feb 2024</p> | |
| <p><a href="https://www.codewars.com/kata/55d24f55d7dd296eb9000030" class="uri">https://www.codewars.com/kata/55d24f55d7dd296eb9000030</a></p> | |
| <section id="instruction" class="level2" data-number="14.1"> | |
| <h2 data-number="14.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">14.1</span> Instruction</h2> | |
| <p>Write a program that finds the summation of every number from 1 to num. The number will always be a positive integer greater than 0. Your function only needs to return the result, what is shown between parentheses in the example below is how you reach that result and it’s not part of it, see the sample tests.</p> | |
| <p><strong>Examples (input -> output)</strong></p> | |
| <div class="cell"> | |
| <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><span class="dv">2</span> <span class="ot">-></span> <span class="dv">3</span> (<span class="dv">1</span> <span class="sc">+</span> <span class="dv">2</span>)</span> | |
| <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a><span class="dv">8</span> <span class="ot">-></span> <span class="dv">36</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="sc">+</span> <span class="dv">6</span> <span class="sc">+</span> <span class="dv">7</span> <span class="sc">+</span> <span class="dv">8</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div> | |
| </div> | |
| </section> | |
| <section id="youtube-video" class="level2" data-number="14.2"> | |
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| </section> | |
| <section id="solution-code" class="level2" data-number="14.3"> | |
| <h2 data-number="14.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">14.3</span> Solution Code</h2> | |
| <div class="cell"> | |
| <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>summation <span class="ot"><-</span> <span class="cf">function</span>(n) {</span> | |
| <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">sum</span>(<span class="dv">1</span><span class="sc">:</span>n)</span> | |
| <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> | |
| </div> | |
| <div class="cell"> | |
| <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>summation <span class="ot"><-</span> <span class="cf">function</span>(n) <span class="fu">sum</span>(<span class="dv">1</span><span class="sc">:</span>n)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div> | |
| </div> | |
| </section> | |
| <section id="test" class="level2" data-number="14.4"> | |
| <h2 data-number="14.4" class="anchored" data-anchor-id="test"><span class="header-section-number">14.4</span> Test</h2> | |
| <div class="cell"> | |
| <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> | |
| <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span> | |
| <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> | |
| <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">summation</span>(<span class="dv">1</span>), <span class="dv">1</span>)</span> | |
| <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">summation</span>(<span class="dv">8</span>), <span class="dv">36</span>)</span> | |
| <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">summation</span>(<span class="dv">22</span>), <span class="dv">253</span>)</span> | |
| <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">summation</span>(<span class="dv">100</span>), <span class="dv">5050</span>)</span> | |
| <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">summation</span>(<span class="dv">213</span>), <span class="dv">22791</span>)</span> | |
| <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> | |
| <div class="cell-output cell-output-stdout"> | |
| <pre><code>Test passed 🥇</code></pre> | |
| </div> | |
| </div> | |
| </section> | |
| <section id="supported-by" class="level2" data-number="14.5"> | |
| <h2 data-number="14.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">14.5</span> Supported by</h2> | |
| <div class="quarto-figure quarto-figure-center"> | |
| <figure class="figure"> | |
| <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p> | |
| <figcaption class="figure-caption">StarCore Analytics</figcaption> | |
| </figure> | |
| </div> | |
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