#include <bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n, m;
cin >> n >> m;
vector<string> arr(n);
for (auto &x : arr) {
cin >> x;
}
vector<vector<int>> O(n, vector<int>(m)), I(n, vector<int>(m));
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (arr[i][j] == 'O') {
O[i][j]++;
} else if (arr[i][j] == 'I') {
I[i][j]++;
}
}
}
for (int i = 0; i < n; i++) {
for (int j = m - 2; j >= 0; j--) {
O[i][j] += O[i][j + 1];
}
}
for (int j = 0; j < m; j++) {
for (int i = n - 2; i >= 0; i--) {
I[i][j] += I[i + 1][j];
}
}
int res = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (arr[i][j] == 'J') {
res += O[i][j] * I[i][j];
}
}
}
cout << res << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
6 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
508 KB |
Output is correct |
8 |
Correct |
5 ms |
504 KB |
Output is correct |
9 |
Correct |
5 ms |
508 KB |
Output is correct |
10 |
Correct |
5 ms |
504 KB |
Output is correct |
11 |
Correct |
5 ms |
504 KB |
Output is correct |
12 |
Correct |
5 ms |
504 KB |
Output is correct |
13 |
Correct |
5 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
6 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
508 KB |
Output is correct |
8 |
Correct |
5 ms |
504 KB |
Output is correct |
9 |
Correct |
5 ms |
508 KB |
Output is correct |
10 |
Correct |
5 ms |
504 KB |
Output is correct |
11 |
Correct |
5 ms |
504 KB |
Output is correct |
12 |
Correct |
5 ms |
504 KB |
Output is correct |
13 |
Correct |
5 ms |
504 KB |
Output is correct |
14 |
Correct |
11 ms |
3704 KB |
Output is correct |
15 |
Correct |
5 ms |
504 KB |
Output is correct |
16 |
Correct |
8 ms |
2680 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
12 ms |
4856 KB |
Output is correct |
19 |
Correct |
10 ms |
4600 KB |
Output is correct |
20 |
Correct |
10 ms |
4728 KB |
Output is correct |
21 |
Correct |
13 ms |
4856 KB |
Output is correct |
22 |
Correct |
10 ms |
4600 KB |
Output is correct |
23 |
Correct |
10 ms |
4728 KB |
Output is correct |
24 |
Correct |
12 ms |
4856 KB |
Output is correct |
25 |
Correct |
10 ms |
4600 KB |
Output is correct |
26 |
Correct |
10 ms |
4728 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
6 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
504 KB |
Output is correct |
6 |
Correct |
5 ms |
504 KB |
Output is correct |
7 |
Correct |
5 ms |
508 KB |
Output is correct |
8 |
Correct |
5 ms |
504 KB |
Output is correct |
9 |
Correct |
5 ms |
508 KB |
Output is correct |
10 |
Correct |
5 ms |
504 KB |
Output is correct |
11 |
Correct |
5 ms |
504 KB |
Output is correct |
12 |
Correct |
5 ms |
504 KB |
Output is correct |
13 |
Correct |
5 ms |
504 KB |
Output is correct |
14 |
Correct |
11 ms |
3704 KB |
Output is correct |
15 |
Correct |
5 ms |
504 KB |
Output is correct |
16 |
Correct |
8 ms |
2680 KB |
Output is correct |
17 |
Correct |
5 ms |
376 KB |
Output is correct |
18 |
Correct |
12 ms |
4856 KB |
Output is correct |
19 |
Correct |
10 ms |
4600 KB |
Output is correct |
20 |
Correct |
10 ms |
4728 KB |
Output is correct |
21 |
Correct |
13 ms |
4856 KB |
Output is correct |
22 |
Correct |
10 ms |
4600 KB |
Output is correct |
23 |
Correct |
10 ms |
4728 KB |
Output is correct |
24 |
Correct |
12 ms |
4856 KB |
Output is correct |
25 |
Correct |
10 ms |
4600 KB |
Output is correct |
26 |
Correct |
10 ms |
4728 KB |
Output is correct |
27 |
Correct |
319 ms |
143188 KB |
Output is correct |
28 |
Correct |
6 ms |
1016 KB |
Output is correct |
29 |
Correct |
19 ms |
11768 KB |
Output is correct |
30 |
Correct |
6 ms |
760 KB |
Output is correct |
31 |
Correct |
241 ms |
105592 KB |
Output is correct |
32 |
Correct |
262 ms |
150648 KB |
Output is correct |
33 |
Correct |
249 ms |
151164 KB |
Output is correct |
34 |
Correct |
277 ms |
122232 KB |
Output is correct |
35 |
Correct |
257 ms |
150648 KB |
Output is correct |
36 |
Correct |
249 ms |
151084 KB |
Output is correct |
37 |
Correct |
350 ms |
151544 KB |
Output is correct |
38 |
Correct |
178 ms |
104568 KB |
Output is correct |
39 |
Correct |
172 ms |
104952 KB |
Output is correct |