Question

queue < int* > qq;

for (int i = 0; i < N; i++) {
    int cc[2] = {i, i + 1};
    qq.push(cc);
}

The N is large but not Exact so I want use queue.
I want to store many arrays to queue,but the arrays which qq stored are the same one.
How can I do it?

Answer 1

Your code won’t work. Each cc has the same stack location in the loop.

You need to allocate the cc array in the heap, perhaps using int *cc = new int[2]; (but then you need to delete it later).

A better way would be to have cc declared as a std::vector or std::array or std::tuple (in C++11).