#include <iostream>
#include <vector>

class Accumulator {
public:
    void addData(const char* data, size_t size) {
        // 将新的数据块追加到累加器
        dataBlocks.insert(dataBlocks.end(), data, data + size);
    }

    size_t getDataSize() const {
        return dataBlocks.size();
    }

    const char* getData() const {
        return dataBlocks.data();
    }

    void clear() {
        dataBlocks.clear();
    }

private:
    std::vector<char> dataBlocks;
};