#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MX = 3e3 + 7;
int N, M;
vector<int> vert[MX], hori[MX];
vector<pair<int, int>> pos;
int main() {
cin.tie(0); ios_base::sync_with_stdio(0);
cin >> N >> M;
for(int i = 0; i < N; i++) {
for(int j = 0; j < M; j++) {
char c;
cin >> c;
if(c == 'J') {
pos.push_back({i, j});
} else if(c == 'O') {
hori[i].push_back(j);
} else {
vert[j].push_back(i);
}
}
}
ll ans = 0;
for(auto [x, y] : pos) {
auto p = lower_bound(hori[x].begin(), hori[x].end(), y) - hori[x].begin();
auto q = lower_bound(vert[y].begin(), vert[y].end(), x) - vert[y].begin();
ans += 1LL * (hori[x].size() - p) * (vert[y].size() - q);
}
cout << ans << '\n';
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
456 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 KB |
Output is correct |
| 7 |
Correct |
1 ms |
464 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
456 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 KB |
Output is correct |
| 7 |
Correct |
1 ms |
464 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
10 ms |
1868 KB |
Output is correct |
| 15 |
Correct |
1 ms |
468 KB |
Output is correct |
| 16 |
Correct |
4 ms |
1360 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
13 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
5 ms |
2000 KB |
Output is correct |
| 20 |
Correct |
5 ms |
2068 KB |
Output is correct |
| 21 |
Correct |
13 ms |
2636 KB |
Output is correct |
| 22 |
Correct |
7 ms |
2380 KB |
Output is correct |
| 23 |
Correct |
6 ms |
2000 KB |
Output is correct |
| 24 |
Correct |
13 ms |
2252 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2000 KB |
Output is correct |
| 26 |
Correct |
5 ms |
2068 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
456 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 KB |
Output is correct |
| 7 |
Correct |
1 ms |
464 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
10 ms |
1868 KB |
Output is correct |
| 15 |
Correct |
1 ms |
468 KB |
Output is correct |
| 16 |
Correct |
4 ms |
1360 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
13 ms |
2636 KB |
Output is correct |
| 19 |
Correct |
5 ms |
2000 KB |
Output is correct |
| 20 |
Correct |
5 ms |
2068 KB |
Output is correct |
| 21 |
Correct |
13 ms |
2636 KB |
Output is correct |
| 22 |
Correct |
7 ms |
2380 KB |
Output is correct |
| 23 |
Correct |
6 ms |
2000 KB |
Output is correct |
| 24 |
Correct |
13 ms |
2252 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2000 KB |
Output is correct |
| 26 |
Correct |
5 ms |
2068 KB |
Output is correct |
| 27 |
Correct |
499 ms |
62240 KB |
Output is correct |
| 28 |
Correct |
2 ms |
728 KB |
Output is correct |
| 29 |
Correct |
15 ms |
5304 KB |
Output is correct |
| 30 |
Correct |
2 ms |
596 KB |
Output is correct |
| 31 |
Correct |
368 ms |
44356 KB |
Output is correct |
| 32 |
Correct |
203 ms |
60856 KB |
Output is correct |
| 33 |
Correct |
231 ms |
64712 KB |
Output is correct |
| 34 |
Correct |
431 ms |
61396 KB |
Output is correct |
| 35 |
Correct |
312 ms |
65468 KB |
Output is correct |
| 36 |
Correct |
235 ms |
64684 KB |
Output is correct |
| 37 |
Correct |
583 ms |
75116 KB |
Output is correct |
| 38 |
Correct |
127 ms |
42020 KB |
Output is correct |
| 39 |
Correct |
149 ms |
49492 KB |
Output is correct |
