#include <bits/stdc++.h>
#define fast cin.tie(0)->sync_with_stdio(0);
#define int long long
#define inf ((int)1e18)
using namespace std;
const int N = 501;
int arr[N][N], dp[N][N];
inline int sum(int x1, int y1, int x2, int y2) {
return dp[x2][y2] - dp[x1 - 1][y2] - dp[x2][y1 - 1] + dp[x1 - 1][y1 - 1];
};
int32_t main(){
fast
int n, m, a, b;
cin >> n >> m >> a >> b;
if(a > b) swap(a, b);
for(int i = 1; i <= n; i++) {
for(int j = 1; j <= m; j++) {
cin >> arr[i][j];
dp[i][j] = dp[i - 1][j] + dp[i][j - 1] - dp[i - 1][j - 1] + arr[i][j];
}
}
int ans = inf;
for(int rowst = 1; rowst <= n; rowst++) {
for(int rownd = 1; rownd <= n; rownd++) {
int l = 1, r = 1;
while(r <= m) {
// implement
int now = sum(rowst, l, rownd, r);
ans = min(ans, abs(a - now) + abs(b - now));
if(now > b) {
l++;
if(l > r) {
r++;
}
}
else if(now >= a) {
cout << b - a << "\n";
return 0;
}
else {
r++;
}
}
}
}
cout << ans << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2908 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2908 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2908 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2908 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2784 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2652 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2908 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2908 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2908 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2908 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2784 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 23 |
Correct |
18 ms |
6568 KB |
Output is correct |
| 24 |
Correct |
18 ms |
6644 KB |
Output is correct |
| 25 |
Correct |
19 ms |
6736 KB |
Output is correct |
| 26 |
Correct |
19 ms |
6648 KB |
Output is correct |
| 27 |
Correct |
17 ms |
5908 KB |
Output is correct |
| 28 |
Correct |
22 ms |
6748 KB |
Output is correct |
| 29 |
Correct |
19 ms |
6748 KB |
Output is correct |
| 30 |
Correct |
23 ms |
6604 KB |
Output is correct |
| 31 |
Correct |
4 ms |
4440 KB |
Output is correct |
| 32 |
Correct |
344 ms |
6728 KB |
Output is correct |
| 33 |
Correct |
332 ms |
6756 KB |
Output is correct |
| 34 |
Correct |
333 ms |
6784 KB |
Output is correct |
| 35 |
Correct |
337 ms |
6708 KB |
Output is correct |
| 36 |
Correct |
349 ms |
6628 KB |
Output is correct |
| 37 |
Correct |
336 ms |
6776 KB |
Output is correct |
| 38 |
Correct |
323 ms |
6636 KB |
Output is correct |
| 39 |
Correct |
334 ms |
6784 KB |
Output is correct |
| 40 |
Correct |
328 ms |
6776 KB |
Output is correct |
| 41 |
Correct |
14 ms |
5384 KB |
Output is correct |
| 42 |
Correct |
14 ms |
5468 KB |
Output is correct |
| 43 |
Correct |
14 ms |
5468 KB |
Output is correct |
| 44 |
Correct |
15 ms |
5468 KB |
Output is correct |
