#include <iostream>
using namespace std;
long long n, m, psx[3010][3010], psy[3010][3010], ans;
char c[3010][3010];
int main() {
cin >> n >> m;
for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) cin >> c[i][j];
for (int i = 1; i <= n; i++) {
for (int j = m; j >= 1; j--) {
psx[i][j] = psx[i][j+1];
if (c[i][j] == 'O') psx[i][j]++;
}
}
for (int j = 1; j <= m; j++) {
for (int i = n; i >= 1; i--) {
psy[i][j] = psy[i+1][j];
if (c[i][j] == 'I') psy[i][j]++;
}
}
for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) if (c[i][j] == 'J') ans += psx[i][j]*psy[i][j];
cout << ans << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
308 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1464 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1468 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1472 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
308 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1464 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1468 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1472 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1340 KB |
Output is correct |
| 14 |
Correct |
18 ms |
8892 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
11 ms |
5312 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
21 ms |
9940 KB |
Output is correct |
| 19 |
Correct |
19 ms |
9792 KB |
Output is correct |
| 20 |
Correct |
19 ms |
9676 KB |
Output is correct |
| 21 |
Correct |
21 ms |
9932 KB |
Output is correct |
| 22 |
Correct |
18 ms |
9812 KB |
Output is correct |
| 23 |
Correct |
19 ms |
9684 KB |
Output is correct |
| 24 |
Correct |
20 ms |
9932 KB |
Output is correct |
| 25 |
Correct |
19 ms |
9704 KB |
Output is correct |
| 26 |
Correct |
23 ms |
9676 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
0 ms |
308 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1464 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1468 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1472 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1340 KB |
Output is correct |
| 14 |
Correct |
18 ms |
8892 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
11 ms |
5312 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
21 ms |
9940 KB |
Output is correct |
| 19 |
Correct |
19 ms |
9792 KB |
Output is correct |
| 20 |
Correct |
19 ms |
9676 KB |
Output is correct |
| 21 |
Correct |
21 ms |
9932 KB |
Output is correct |
| 22 |
Correct |
18 ms |
9812 KB |
Output is correct |
| 23 |
Correct |
19 ms |
9684 KB |
Output is correct |
| 24 |
Correct |
20 ms |
9932 KB |
Output is correct |
| 25 |
Correct |
19 ms |
9704 KB |
Output is correct |
| 26 |
Correct |
23 ms |
9676 KB |
Output is correct |
| 27 |
Correct |
685 ms |
158816 KB |
Output is correct |
| 28 |
Correct |
14 ms |
26324 KB |
Output is correct |
| 29 |
Correct |
44 ms |
13900 KB |
Output is correct |
| 30 |
Correct |
2 ms |
724 KB |
Output is correct |
| 31 |
Correct |
523 ms |
131536 KB |
Output is correct |
| 32 |
Correct |
686 ms |
159308 KB |
Output is correct |
| 33 |
Correct |
684 ms |
158992 KB |
Output is correct |
| 34 |
Correct |
586 ms |
152572 KB |
Output is correct |
| 35 |
Correct |
674 ms |
159424 KB |
Output is correct |
| 36 |
Correct |
684 ms |
158768 KB |
Output is correct |
| 37 |
Correct |
734 ms |
159240 KB |
Output is correct |
| 38 |
Correct |
491 ms |
130824 KB |
Output is correct |
| 39 |
Correct |
493 ms |
131020 KB |
Output is correct |
