#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int h, w;
cin >> h >> w;
vector<vector<char>> grid(h, vector<char>(w));
vector<int> countO(h), countI(w);
for (int i = 0; i < h; ++i) {
for (int j = 0; j < w; ++j)
cin >> grid[i][j];
}
long long res = 0;
for (int i = h - 1; i >= 0; --i) {
for (int j = w - 1; j >= 0; --j) {
countO[i] += grid[i][j] == 'O';
countI[j] += grid[i][j] == 'I';
if (grid[i][j] == 'J')
res += countI[j] * countO[i];
}
}
cout << res;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
468 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
3 ms |
468 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
5 ms |
712 KB |
Output is correct |
| 19 |
Correct |
4 ms |
596 KB |
Output is correct |
| 20 |
Correct |
5 ms |
592 KB |
Output is correct |
| 21 |
Correct |
5 ms |
588 KB |
Output is correct |
| 22 |
Correct |
4 ms |
596 KB |
Output is correct |
| 23 |
Correct |
4 ms |
596 KB |
Output is correct |
| 24 |
Correct |
5 ms |
596 KB |
Output is correct |
| 25 |
Correct |
5 ms |
696 KB |
Output is correct |
| 26 |
Correct |
6 ms |
596 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
3 ms |
468 KB |
Output is correct |
| 15 |
Correct |
1 ms |
340 KB |
Output is correct |
| 16 |
Correct |
3 ms |
468 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
5 ms |
712 KB |
Output is correct |
| 19 |
Correct |
4 ms |
596 KB |
Output is correct |
| 20 |
Correct |
5 ms |
592 KB |
Output is correct |
| 21 |
Correct |
5 ms |
588 KB |
Output is correct |
| 22 |
Correct |
4 ms |
596 KB |
Output is correct |
| 23 |
Correct |
4 ms |
596 KB |
Output is correct |
| 24 |
Correct |
5 ms |
596 KB |
Output is correct |
| 25 |
Correct |
5 ms |
696 KB |
Output is correct |
| 26 |
Correct |
6 ms |
596 KB |
Output is correct |
| 27 |
Correct |
148 ms |
8792 KB |
Output is correct |
| 28 |
Correct |
1 ms |
468 KB |
Output is correct |
| 29 |
Correct |
11 ms |
980 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
104 ms |
6656 KB |
Output is correct |
| 32 |
Correct |
134 ms |
9316 KB |
Output is correct |
| 33 |
Correct |
124 ms |
9328 KB |
Output is correct |
| 34 |
Correct |
114 ms |
7652 KB |
Output is correct |
| 35 |
Correct |
123 ms |
9300 KB |
Output is correct |
| 36 |
Correct |
123 ms |
9292 KB |
Output is correct |
| 37 |
Correct |
159 ms |
9356 KB |
Output is correct |
| 38 |
Correct |
87 ms |
6612 KB |
Output is correct |
| 39 |
Correct |
84 ms |
6612 KB |
Output is correct |
