#include <bits/stdc++.h>
using namespace std;
int main() {
int n, m, d, k, ans = 0;
cin >> n >> m >> d >> k;
char mat[n+1][m+1];
int P[n+2][m+2];
memset(P, 0, sizeof(P));
for(int i=1; i<=n; i++) {
for(int j=1; j<=m; j++) {
cin >> mat[i][j];
if(mat[i][j] == 'S') {
int x1 = max(1, i - d), x2 = min(n, i + d), y1 = max(1, j - d), y2 = min(m, j + d);
P[x1][y1]++; P[x2+1][y2+1]++;
P[x1][y2+1]--, P[x2+1][y1]--;
}
}
}
for(int i=1; i<=n; i++) {
for(int j=1; j<=m; j++) {
P[i][j] += P[i-1][j] + P[i][j-1];
P[i][j] -= P[i-1][j-1];
if(P[i][j] >= k && mat[i][j] == 'M') ans++;
}
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
1372 KB |
Output is correct |
2 |
Correct |
8 ms |
1384 KB |
Output is correct |
3 |
Correct |
9 ms |
1660 KB |
Output is correct |
4 |
Correct |
8 ms |
1368 KB |
Output is correct |
5 |
Correct |
9 ms |
1372 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
23 ms |
7260 KB |
Output is correct |
2 |
Correct |
25 ms |
7256 KB |
Output is correct |
3 |
Correct |
21 ms |
7260 KB |
Output is correct |
4 |
Correct |
23 ms |
7260 KB |
Output is correct |
5 |
Correct |
22 ms |
7260 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
600 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
8 ms |
1372 KB |
Output is correct |
17 |
Correct |
8 ms |
1384 KB |
Output is correct |
18 |
Correct |
9 ms |
1660 KB |
Output is correct |
19 |
Correct |
8 ms |
1368 KB |
Output is correct |
20 |
Correct |
9 ms |
1372 KB |
Output is correct |
21 |
Correct |
23 ms |
7260 KB |
Output is correct |
22 |
Correct |
25 ms |
7256 KB |
Output is correct |
23 |
Correct |
21 ms |
7260 KB |
Output is correct |
24 |
Correct |
23 ms |
7260 KB |
Output is correct |
25 |
Correct |
22 ms |
7260 KB |
Output is correct |
26 |
Correct |
21 ms |
2904 KB |
Output is correct |
27 |
Correct |
19 ms |
2652 KB |
Output is correct |
28 |
Correct |
20 ms |
2948 KB |
Output is correct |
29 |
Correct |
21 ms |
2952 KB |
Output is correct |
30 |
Correct |
24 ms |
3156 KB |
Output is correct |