#include <iostream>
#include <algorithm>
#include <climits>
#define int long long
using namespace std;
int f(int s, int a) {
a %= s * 2;
return min(a, s * 2 - a);
}
signed main() {
int n, k, temp, ans;
cin >> n >> k;
int x1[n], y1[n], x2[n], y2[n];
for (i = 0; i < k; i++){
cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
--x1[i]; --y1[i];
}
ans = LLONG_MAX;
for (int i = 1; i < n; i++)
if (n % i == 0) {
k = (n / i) * (n / i) / 2 * i * i;
for (int j = 0; j < k; j++) temp += (f(i, x2[j]) - f(i, x1[j])) * (f(i, y2[j]) - f(i, y1[j]));
ans = min(ans, min(temp, n * n - temp));
}
cout << ans << '\n';
}
Compilation message
chessboard.cpp: In function 'int main()':
chessboard.cpp:16:7: error: 'i' was not declared in this scope
16 | for (i = 0; i < k; i++){
| ^
