//
// Created by martial.simon on 2/24/25.
//
void ref_swap(int& a, int& b)
{
    int tmp = a;
    a = b;
    b = tmp;
}

void ptr_swap(int* a, int* b)
{
    if (!a || !b)
        return;
    int tmp = *a;
    *a = *b;
    *b = tmp;
}