#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main() {
int n, k; cin >> n >> k; vector<string> v(n);
for(int i=0;i<n;i++) cin >> v[i];
vector<vector<int>> a(n, vector<int>(k)), b(n, vector<int>(k));
for(int i=0;i<n;i++) for(int j=0;j<k;j++) {
if(v[i][j] == 'O') a[i][j]++;
if(j) a[i][j] += a[i][j-1];
}
for(int j=0;j<k;j++) for(int i=0;i<n;i++) {
if(v[i][j] == 'I') b[i][j]++;
if(i) b[i][j] += b[i-1][j];
}
int ans = 0;
for(int i=0;i<n;i++) for(int j=0;j<k;j++) if(v[i][j] == 'J') ans += (b[n-1][j]-b[i][j])*(a[i][k-1]-a[i][j]);
cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
604 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
604 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
604 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
604 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| 14 |
Correct |
7 ms |
3676 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2732 KB |
Output is correct |
| 17 |
Correct |
0 ms |
408 KB |
Output is correct |
| 18 |
Correct |
9 ms |
4952 KB |
Output is correct |
| 19 |
Correct |
6 ms |
4700 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 21 |
Correct |
8 ms |
4956 KB |
Output is correct |
| 22 |
Correct |
6 ms |
4700 KB |
Output is correct |
| 23 |
Correct |
6 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
8 ms |
5128 KB |
Output is correct |
| 25 |
Correct |
7 ms |
4700 KB |
Output is correct |
| 26 |
Correct |
6 ms |
4956 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
604 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
604 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
604 KB |
Output is correct |
| 11 |
Correct |
1 ms |
604 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
604 KB |
Output is correct |
| 14 |
Correct |
7 ms |
3676 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2732 KB |
Output is correct |
| 17 |
Correct |
0 ms |
408 KB |
Output is correct |
| 18 |
Correct |
9 ms |
4952 KB |
Output is correct |
| 19 |
Correct |
6 ms |
4700 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4952 KB |
Output is correct |
| 21 |
Correct |
8 ms |
4956 KB |
Output is correct |
| 22 |
Correct |
6 ms |
4700 KB |
Output is correct |
| 23 |
Correct |
6 ms |
4956 KB |
Output is correct |
| 24 |
Correct |
8 ms |
5128 KB |
Output is correct |
| 25 |
Correct |
7 ms |
4700 KB |
Output is correct |
| 26 |
Correct |
6 ms |
4956 KB |
Output is correct |
| 27 |
Correct |
307 ms |
153296 KB |
Output is correct |
| 28 |
Correct |
1 ms |
860 KB |
Output is correct |
| 29 |
Correct |
18 ms |
12096 KB |
Output is correct |
| 30 |
Correct |
1 ms |
860 KB |
Output is correct |
| 31 |
Correct |
208 ms |
114088 KB |
Output is correct |
| 32 |
Correct |
267 ms |
160596 KB |
Output is correct |
| 33 |
Correct |
264 ms |
161104 KB |
Output is correct |
| 34 |
Correct |
256 ms |
132176 KB |
Output is correct |
| 35 |
Correct |
278 ms |
160596 KB |
Output is correct |
| 36 |
Correct |
259 ms |
161108 KB |
Output is correct |
| 37 |
Correct |
307 ms |
161768 KB |
Output is correct |
| 38 |
Correct |
173 ms |
113220 KB |
Output is correct |
| 39 |
Correct |
179 ms |
113516 KB |
Output is correct |
