Submission #505517

#	Time	Username	Problem	Language	Result	Execution time	Memory
505517		Mazaalai	Chessboard (IZhO18_chessboard)	C++17	8 / 100	1 ms	292 KiB

chessboard

#include <bits/stdc++.h>
using namespace std;
int n;
signed main() {
	cin >> n;
	// n = 6;
	int x = 1, ans = n * n / 2;
	for (int i = 2; i * i <= n; i++) {
		if (n % i == 0) {
			int j = n / i;
			ans = min(ans, j * j / 2 * i * i);
			swap(i, j);
			ans = min(ans, j * j / 2 * i * i);
			swap(i, j);
		}
	}
	cout << ans << '\n';
}

Compilation message (stderr)

chessboard.cpp: In function 'int main()':
chessboard.cpp:7:6: warning: unused variable 'x' [-Wunused-variable]
    7 |  int x = 1, ans = n * n / 2;
      |      ^

• Subtask 1: 8 / 8
• Subtask 2: 0 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30