#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#define ll long long
using namespace std;
const int MAXN = 3005;
int numb1[MAXN][MAXN];
int numb2[MAXN][MAXN];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m;
cin >> n >> m;
vector<string> mat(n);
for (int i = 0; i < n; i++) {
cin >> mat[i];
}
for (int i = 0; i < n; i++) {
int now = 0;
for (int j = m - 1; j >= 0; j--) {
if (mat[i][j] == 'O')
now++;
numb1[i][j] = now;
}
}
for (int j = 0; j < m; j++) {
int now = 0;
for (int i = n - 1; i >= 0; i--) {
if (mat[i][j] == 'I')
now++;
numb2[i][j] = now;
}
}
ll ans = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (mat[i][j] == 'J')
ans += numb1[i][j] * numb2[i][j];
}
//cerr << endl;
}
cout << ans << endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
8 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 7 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 8 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 9 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 10 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 11 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 12 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 13 |
Correct |
5 ms |
1152 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
8 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 7 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 8 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 9 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 10 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 11 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 12 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 13 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 14 |
Correct |
9 ms |
6272 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3840 KB |
Output is correct |
| 16 |
Correct |
10 ms |
3712 KB |
Output is correct |
| 17 |
Correct |
5 ms |
512 KB |
Output is correct |
| 18 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 19 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 20 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 21 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 22 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 23 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 24 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 25 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 26 |
Correct |
9 ms |
6656 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
4 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
8 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
1408 KB |
Output is correct |
| 6 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 7 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 8 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 9 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 10 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 11 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 12 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 13 |
Correct |
5 ms |
1152 KB |
Output is correct |
| 14 |
Correct |
9 ms |
6272 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3840 KB |
Output is correct |
| 16 |
Correct |
10 ms |
3712 KB |
Output is correct |
| 17 |
Correct |
5 ms |
512 KB |
Output is correct |
| 18 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 19 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 20 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 21 |
Correct |
10 ms |
6912 KB |
Output is correct |
| 22 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 23 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 24 |
Correct |
10 ms |
6784 KB |
Output is correct |
| 25 |
Correct |
9 ms |
6784 KB |
Output is correct |
| 26 |
Correct |
9 ms |
6656 KB |
Output is correct |
| 27 |
Correct |
297 ms |
88444 KB |
Output is correct |
| 28 |
Correct |
13 ms |
19328 KB |
Output is correct |
| 29 |
Correct |
11 ms |
7808 KB |
Output is correct |
| 30 |
Correct |
5 ms |
640 KB |
Output is correct |
| 31 |
Correct |
216 ms |
72056 KB |
Output is correct |
| 32 |
Correct |
276 ms |
89336 KB |
Output is correct |
| 33 |
Correct |
285 ms |
89244 KB |
Output is correct |
| 34 |
Correct |
242 ms |
83448 KB |
Output is correct |
| 35 |
Correct |
279 ms |
89336 KB |
Output is correct |
| 36 |
Correct |
283 ms |
89300 KB |
Output is correct |
| 37 |
Correct |
312 ms |
89464 KB |
Output is correct |
| 38 |
Correct |
188 ms |
71800 KB |
Output is correct |
| 39 |
Correct |
189 ms |
71800 KB |
Output is correct |
