/*** Author: Barish Namazov (toonewbie) ***/
#include <bits/stdc++.h>
using namespace std;
char A[3005][3005];
int si[3005][3005], so[3005][3005];
int main() {
ios_base :: sync_with_stdio(0);
cin.tie(0), cout.tie(0);
int n, m;
cin >> n >> m;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
cin >> A[i][j];
}
}
for (int i = 1; i <= n; i++) {
for (int j = m; j >= 1; j--) {
so[i][j] = so[i][j + 1] + (A[i][j] == 'O');
}
}
for (int j = 1; j <= m; j++) {
for (int i = n; i >= 1; i--) {
si[i][j] = si[i + 1][j] + (A[i][j] == 'I');
}
}
long long res = 0;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
if (A[i][j] == 'J') {
res += 1LL * so[i][j] * si[i][j];
}
}
}
cout << res << endl;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
3 ms |
588 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 8 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 9 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 10 |
Correct |
4 ms |
1408 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1408 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
3 ms |
588 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 8 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 9 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 10 |
Correct |
4 ms |
1408 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 14 |
Correct |
13 ms |
7296 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 16 |
Correct |
8 ms |
4224 KB |
Output is correct |
| 17 |
Correct |
2 ms |
512 KB |
Output is correct |
| 18 |
Correct |
18 ms |
7680 KB |
Output is correct |
| 19 |
Correct |
13 ms |
7680 KB |
Output is correct |
| 20 |
Correct |
12 ms |
7680 KB |
Output is correct |
| 21 |
Correct |
17 ms |
7808 KB |
Output is correct |
| 22 |
Correct |
14 ms |
7680 KB |
Output is correct |
| 23 |
Correct |
16 ms |
7680 KB |
Output is correct |
| 24 |
Correct |
15 ms |
7808 KB |
Output is correct |
| 25 |
Correct |
14 ms |
7680 KB |
Output is correct |
| 26 |
Correct |
13 ms |
7680 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
3 ms |
588 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 8 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 9 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 10 |
Correct |
4 ms |
1408 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1536 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1408 KB |
Output is correct |
| 14 |
Correct |
13 ms |
7296 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 16 |
Correct |
8 ms |
4224 KB |
Output is correct |
| 17 |
Correct |
2 ms |
512 KB |
Output is correct |
| 18 |
Correct |
18 ms |
7680 KB |
Output is correct |
| 19 |
Correct |
13 ms |
7680 KB |
Output is correct |
| 20 |
Correct |
12 ms |
7680 KB |
Output is correct |
| 21 |
Correct |
17 ms |
7808 KB |
Output is correct |
| 22 |
Correct |
14 ms |
7680 KB |
Output is correct |
| 23 |
Correct |
16 ms |
7680 KB |
Output is correct |
| 24 |
Correct |
15 ms |
7808 KB |
Output is correct |
| 25 |
Correct |
14 ms |
7680 KB |
Output is correct |
| 26 |
Correct |
13 ms |
7680 KB |
Output is correct |
| 27 |
Correct |
406 ms |
79820 KB |
Output is correct |
| 28 |
Correct |
26 ms |
25984 KB |
Output is correct |
| 29 |
Correct |
21 ms |
7212 KB |
Output is correct |
| 30 |
Correct |
3 ms |
640 KB |
Output is correct |
| 31 |
Correct |
297 ms |
66556 KB |
Output is correct |
| 32 |
Correct |
378 ms |
79736 KB |
Output is correct |
| 33 |
Correct |
414 ms |
79476 KB |
Output is correct |
| 34 |
Correct |
362 ms |
77180 KB |
Output is correct |
| 35 |
Correct |
422 ms |
79804 KB |
Output is correct |
| 36 |
Correct |
444 ms |
79480 KB |
Output is correct |
| 37 |
Correct |
458 ms |
79812 KB |
Output is correct |
| 38 |
Correct |
304 ms |
66556 KB |
Output is correct |
| 39 |
Correct |
290 ms |
66296 KB |
Output is correct |
