#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 5e3 + 2;
int a[155][N],sum[N],pre[155][N],suf[N];
int n,m,total;
bool check(int mid) {
for (int l = 1; l <= n; l++)
for (int r = l; r <= n; r++) {
sum[0] = 0;
for (int i = 1; i <= m; i++)
sum[i] = sum[i - 1] + pre[r][i] - pre[l - 1][i];
suf[m + 1] = 1e18;
for (int i = m; i > 0; i--)
suf[i] = min(suf[i + 1],2 * sum[i] + (r - l + 1) * i);
for (int i = 1; i <= m; i++)
if (suf[i + 1] <= mid + 2 * sum[i - 1] - total + (r - l + 1) * (i - 1)) return 1;
}
return 0;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n >> m;
total = 0;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++) {
char x;
cin >> x;
a[i][j] = x - '0';
total += a[i][j];
pre[i][j] = pre[i - 1][j] + 1 - a[i][j];
}
int l = 0,r = n * m,ans = -1;
while (l <= r) {
int mid = (l + r) / 2;
if (check(mid)) ans = mid,r = mid - 1;
else l = mid + 1;
}
cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
336 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
848 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
31 ms |
25992 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
6 ms |
2128 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
9 ms |
1360 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1066 ms |
12112 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |