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Size_changer

執行階段改變陣列大小示範程式。

void change_size(int *&arr, int size, int new_size) {
    int *new_arr = new int[new_size];
    int *recycler = arr;
    copy(arr, arr + size, new_arr);

    delete[] recycler;
    arr = new_arr;
}

Build

g++ main.cpp size_changer.cpp -O2 --std=c++20

License

Licenced under the MIT licnese.