#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main() {
ios::sync_with_stdio(0);
cin.tie(0);
int n, k;
cin >> n >> k;
if (k == 0) {
int ans = -1;
for (int i = 2; i <= n; i++) {
if (n % i == 0) {
int m = n / i;
int res = ((n*n) / (m*m)) / 2 * (m *m);
if (ans == -1 || ans > res)
ans = res;
}
}
cout << ans << '\n';
} else {
int cnt[] = {0, 0};
for (int i = 0, x, y; i < k; i++) {
cin >> x >> y >> x >> y;
cnt[(x+y)%2]++;
}
if (n == 2) {
cout << 2 - max(cnt[0], cnt[1]);
} else {
cout << min(n*n/2+1-cnt[0]+cnt[1], n*n/2-cnt[1]+cnt[0]);
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
22 ms |
364 KB |
Output is correct |
2 |
Correct |
6 ms |
748 KB |
Output is correct |
3 |
Correct |
14 ms |
1260 KB |
Output is correct |
4 |
Correct |
16 ms |
1260 KB |
Output is correct |
5 |
Correct |
24 ms |
1644 KB |
Output is correct |
6 |
Correct |
13 ms |
1132 KB |
Output is correct |
7 |
Correct |
3 ms |
492 KB |
Output is correct |
8 |
Correct |
13 ms |
1132 KB |
Output is correct |
9 |
Correct |
32 ms |
2412 KB |
Output is correct |
10 |
Correct |
18 ms |
1516 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
22 ms |
364 KB |
Output is correct |
2 |
Correct |
6 ms |
748 KB |
Output is correct |
3 |
Correct |
14 ms |
1260 KB |
Output is correct |
4 |
Correct |
16 ms |
1260 KB |
Output is correct |
5 |
Correct |
24 ms |
1644 KB |
Output is correct |
6 |
Correct |
13 ms |
1132 KB |
Output is correct |
7 |
Correct |
3 ms |
492 KB |
Output is correct |
8 |
Correct |
13 ms |
1132 KB |
Output is correct |
9 |
Correct |
32 ms |
2412 KB |
Output is correct |
10 |
Correct |
18 ms |
1516 KB |
Output is correct |
11 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
0 ms |
364 KB |
Output is correct |
9 |
Correct |
22 ms |
364 KB |
Output is correct |
10 |
Correct |
6 ms |
748 KB |
Output is correct |
11 |
Correct |
14 ms |
1260 KB |
Output is correct |
12 |
Correct |
16 ms |
1260 KB |
Output is correct |
13 |
Correct |
24 ms |
1644 KB |
Output is correct |
14 |
Correct |
13 ms |
1132 KB |
Output is correct |
15 |
Correct |
3 ms |
492 KB |
Output is correct |
16 |
Correct |
13 ms |
1132 KB |
Output is correct |
17 |
Correct |
32 ms |
2412 KB |
Output is correct |
18 |
Correct |
18 ms |
1516 KB |
Output is correct |
19 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
20 |
Halted |
0 ms |
0 KB |
- |