How to create a dynamic array of integers

int main()
{
int size;

std::cin >> size;

int *array = new int[size];

delete [] array;

return 0;
}

Don’t forget to delete every array you allocate with new.

Since C++11, there’s a safe alternative to new[] and delete[] which is zero-overhead unlike std::vector:
std::unique_ptr array(new int[size]);

In C++14:
auto array = std::make_unique(size);

Both of the above rely on the same header file, #include