그랬었습니다

1234567891011121314151617181920212223#include using namespace std; int main() { int N, r, c, x = 0, y = 0, index = 0; cin >> N >> r >> c; int num = 1; for (int i = 1; i 0) { if (r >= y + num) { y += num; index += num * num * 2; } if (c >= x + num) { x += num; index += num * num; } num /= 2; } cout