#include "bits/stdc++.h"
using namespace std;
#define ar array
#define int long long
signed main(){
ios::sync_with_stdio(0); cin.tie(0);
int n, m; cin>>n>>m;
vector<string> a(n);
for(int i=0;i<n;i++) cin>>a[i];
vector<int> row(n), col(m);
int res = 0;
for(int i=n-1;~i;i--){
for(int j=m-1;~j;j--){
if(a[i][j] == 'J'){
res += row[i] * col[j];
}
if(a[i][j] == 'O') row[i]++;
if(a[i][j] == 'I') col[j]++;
}
}
cout<<res<<"\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
316 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
320 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
316 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
320 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
2 ms |
716 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
568 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
3 ms |
716 KB |
Output is correct |
| 19 |
Correct |
1 ms |
700 KB |
Output is correct |
| 20 |
Correct |
1 ms |
716 KB |
Output is correct |
| 21 |
Correct |
3 ms |
844 KB |
Output is correct |
| 22 |
Correct |
2 ms |
716 KB |
Output is correct |
| 23 |
Correct |
2 ms |
700 KB |
Output is correct |
| 24 |
Correct |
3 ms |
844 KB |
Output is correct |
| 25 |
Correct |
2 ms |
704 KB |
Output is correct |
| 26 |
Correct |
1 ms |
716 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
332 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
316 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
320 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
2 ms |
716 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
568 KB |
Output is correct |
| 17 |
Correct |
1 ms |
204 KB |
Output is correct |
| 18 |
Correct |
3 ms |
716 KB |
Output is correct |
| 19 |
Correct |
1 ms |
700 KB |
Output is correct |
| 20 |
Correct |
1 ms |
716 KB |
Output is correct |
| 21 |
Correct |
3 ms |
844 KB |
Output is correct |
| 22 |
Correct |
2 ms |
716 KB |
Output is correct |
| 23 |
Correct |
2 ms |
700 KB |
Output is correct |
| 24 |
Correct |
3 ms |
844 KB |
Output is correct |
| 25 |
Correct |
2 ms |
704 KB |
Output is correct |
| 26 |
Correct |
1 ms |
716 KB |
Output is correct |
| 27 |
Correct |
77 ms |
17860 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
3 ms |
1600 KB |
Output is correct |
| 30 |
Correct |
1 ms |
348 KB |
Output is correct |
| 31 |
Correct |
55 ms |
13264 KB |
Output is correct |
| 32 |
Correct |
37 ms |
18720 KB |
Output is correct |
| 33 |
Correct |
32 ms |
18844 KB |
Output is correct |
| 34 |
Correct |
64 ms |
15152 KB |
Output is correct |
| 35 |
Correct |
33 ms |
18808 KB |
Output is correct |
| 36 |
Correct |
32 ms |
19016 KB |
Output is correct |
| 37 |
Correct |
76 ms |
18840 KB |
Output is correct |
| 38 |
Correct |
26 ms |
12980 KB |
Output is correct |
| 39 |
Correct |
23 ms |
13148 KB |
Output is correct |
