#include <bits/stdc++.h>
using namespace std;
#define ll long long
void init() {
}
void solve() {
int h, w;
cin >> h >> w;
string a[h];
for (int i = 0; i < h; i++) cin >> a[i];
int psi[h][w], pso[h][w];
for (int i = 0; i < w; i++) {
psi[h - 1][i] = 0;
for (int j = h - 2; j >= 0; j--) {
psi[j][i] = psi[j + 1][i] + (a[j + 1][i] == 'I');
}
}
for (int i = 0; i < h; i++) {
pso[i][w - 1] = 0;
for (int j = w - 2; j >= 0; j--) {
pso[i][j] = pso[i][j + 1] + (a[i][j + 1] == 'O');
}
}
ll int ans = 0;
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
if (a[i][j] == 'J') {
ans += psi[i][j] * pso[i][j];
}
}
}
cout << ans << endl;
}
int main() {
ios::sync_with_stdio(false); cin.tie(0);
init();
solve();
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2004 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2516 KB |
Output is correct |
| 19 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2388 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2516 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2516 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2388 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Correct |
0 ms |
340 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2004 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2516 KB |
Output is correct |
| 19 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2388 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2516 KB |
Output is correct |
| 22 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 23 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2516 KB |
Output is correct |
| 25 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2388 KB |
Output is correct |
| 27 |
Correct |
220 ms |
76040 KB |
Output is correct |
| 28 |
Correct |
1 ms |
596 KB |
Output is correct |
| 29 |
Correct |
8 ms |
6740 KB |
Output is correct |
| 30 |
Correct |
1 ms |
480 KB |
Output is correct |
| 31 |
Correct |
145 ms |
62040 KB |
Output is correct |
| 32 |
Correct |
221 ms |
88752 KB |
Output is correct |
| 33 |
Correct |
209 ms |
89084 KB |
Output is correct |
| 34 |
Correct |
180 ms |
71888 KB |
Output is correct |
| 35 |
Correct |
218 ms |
88756 KB |
Output is correct |
| 36 |
Correct |
199 ms |
89084 KB |
Output is correct |
| 37 |
Correct |
262 ms |
89384 KB |
Output is correct |
| 38 |
Correct |
132 ms |
61588 KB |
Output is correct |
| 39 |
Correct |
129 ms |
61824 KB |
Output is correct |
