#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int, int> pii;
const int MXN = 5005;
int n, m, O[MXN][MXN], I[MXN][MXN], ans;
string s[MXN];
char c[MXN][MXN];
void GO() {
for (int i = 0; i < n; i++) {
for (int j = m - 2; j >= 0; j--) {
O[i][j] = O[i][j + 1];
if (s[i][j + 1] == 'O') O[i][j]++;
}
}
}
void GI() {
for (int j = 0; j < m; j++) {
for (int i = n - 2; i >= 0; i--) {
I[i][j] = I[i + 1][j];
if (s[i + 1][j] == 'I') I[i][j]++;
}
}
}
int32_t main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n >> m;
for (int i = 0; i < n; i++) cin >> s[i];
GO();
GI();
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (s[i][j] != 'J') continue;
ans += O[i][j] * I[i][j];
}
}
cout << ans << endl;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
500 KB |
Output is correct |
| 2 |
Correct |
1 ms |
468 KB |
Output is correct |
| 3 |
Correct |
1 ms |
496 KB |
Output is correct |
| 4 |
Correct |
1 ms |
468 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1268 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
500 KB |
Output is correct |
| 2 |
Correct |
1 ms |
468 KB |
Output is correct |
| 3 |
Correct |
1 ms |
496 KB |
Output is correct |
| 4 |
Correct |
1 ms |
468 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1268 KB |
Output is correct |
| 14 |
Correct |
7 ms |
7844 KB |
Output is correct |
| 15 |
Correct |
2 ms |
3924 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 17 |
Correct |
1 ms |
596 KB |
Output is correct |
| 18 |
Correct |
9 ms |
8956 KB |
Output is correct |
| 19 |
Correct |
6 ms |
8680 KB |
Output is correct |
| 20 |
Correct |
6 ms |
8788 KB |
Output is correct |
| 21 |
Correct |
9 ms |
8916 KB |
Output is correct |
| 22 |
Correct |
8 ms |
8680 KB |
Output is correct |
| 23 |
Correct |
8 ms |
8676 KB |
Output is correct |
| 24 |
Correct |
7 ms |
8916 KB |
Output is correct |
| 25 |
Correct |
6 ms |
8780 KB |
Output is correct |
| 26 |
Correct |
6 ms |
8700 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
500 KB |
Output is correct |
| 2 |
Correct |
1 ms |
468 KB |
Output is correct |
| 3 |
Correct |
1 ms |
496 KB |
Output is correct |
| 4 |
Correct |
1 ms |
468 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1388 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1268 KB |
Output is correct |
| 14 |
Correct |
7 ms |
7844 KB |
Output is correct |
| 15 |
Correct |
2 ms |
3924 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4820 KB |
Output is correct |
| 17 |
Correct |
1 ms |
596 KB |
Output is correct |
| 18 |
Correct |
9 ms |
8956 KB |
Output is correct |
| 19 |
Correct |
6 ms |
8680 KB |
Output is correct |
| 20 |
Correct |
6 ms |
8788 KB |
Output is correct |
| 21 |
Correct |
9 ms |
8916 KB |
Output is correct |
| 22 |
Correct |
8 ms |
8680 KB |
Output is correct |
| 23 |
Correct |
8 ms |
8676 KB |
Output is correct |
| 24 |
Correct |
7 ms |
8916 KB |
Output is correct |
| 25 |
Correct |
6 ms |
8780 KB |
Output is correct |
| 26 |
Correct |
6 ms |
8700 KB |
Output is correct |
| 27 |
Correct |
317 ms |
175024 KB |
Output is correct |
| 28 |
Correct |
10 ms |
19660 KB |
Output is correct |
| 29 |
Correct |
11 ms |
13900 KB |
Output is correct |
| 30 |
Correct |
1 ms |
852 KB |
Output is correct |
| 31 |
Correct |
208 ms |
131176 KB |
Output is correct |
| 32 |
Correct |
276 ms |
182784 KB |
Output is correct |
| 33 |
Correct |
269 ms |
183464 KB |
Output is correct |
| 34 |
Correct |
264 ms |
152152 KB |
Output is correct |
| 35 |
Correct |
273 ms |
182820 KB |
Output is correct |
| 36 |
Correct |
263 ms |
183272 KB |
Output is correct |
| 37 |
Correct |
326 ms |
184084 KB |
Output is correct |
| 38 |
Correct |
180 ms |
130320 KB |
Output is correct |
| 39 |
Correct |
193 ms |
130580 KB |
Output is correct |
