#include <bits/stdc++.h>
using namespace std;
const int N = 3000;
int row[N], col[N];
string grid[N];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int h, w;
cin >> h >> w;
for (int i = 0; i < h; ++i) {
cin >> grid[i];
}
long long ans = 0;
for (int i = h - 1; i >= 0; --i) {
for (int j = w - 1; j >= 0; --j) {
if (grid[i][j] == 'J') {
ans += row[i] * col[j];
} else if (grid[i][j] == 'O') {
++row[i];
} else {
++col[j];
}
}
}
cout << ans << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
588 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
3 ms |
588 KB |
Output is correct |
19 |
Correct |
2 ms |
588 KB |
Output is correct |
20 |
Correct |
2 ms |
588 KB |
Output is correct |
21 |
Correct |
4 ms |
940 KB |
Output is correct |
22 |
Correct |
2 ms |
844 KB |
Output is correct |
23 |
Correct |
2 ms |
844 KB |
Output is correct |
24 |
Correct |
4 ms |
844 KB |
Output is correct |
25 |
Correct |
2 ms |
844 KB |
Output is correct |
26 |
Correct |
2 ms |
844 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
588 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
3 ms |
588 KB |
Output is correct |
19 |
Correct |
2 ms |
588 KB |
Output is correct |
20 |
Correct |
2 ms |
588 KB |
Output is correct |
21 |
Correct |
4 ms |
940 KB |
Output is correct |
22 |
Correct |
2 ms |
844 KB |
Output is correct |
23 |
Correct |
2 ms |
844 KB |
Output is correct |
24 |
Correct |
4 ms |
844 KB |
Output is correct |
25 |
Correct |
2 ms |
844 KB |
Output is correct |
26 |
Correct |
2 ms |
844 KB |
Output is correct |
27 |
Correct |
87 ms |
14040 KB |
Output is correct |
28 |
Correct |
1 ms |
332 KB |
Output is correct |
29 |
Correct |
3 ms |
1740 KB |
Output is correct |
30 |
Correct |
1 ms |
460 KB |
Output is correct |
31 |
Correct |
64 ms |
11532 KB |
Output is correct |
32 |
Correct |
46 ms |
14524 KB |
Output is correct |
33 |
Correct |
38 ms |
14472 KB |
Output is correct |
34 |
Correct |
77 ms |
12544 KB |
Output is correct |
35 |
Correct |
43 ms |
14404 KB |
Output is correct |
36 |
Correct |
38 ms |
14556 KB |
Output is correct |
37 |
Correct |
90 ms |
14588 KB |
Output is correct |
38 |
Correct |
35 ms |
11636 KB |
Output is correct |
39 |
Correct |
30 ms |
11480 KB |
Output is correct |