#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
ios::sync_with_stdio(false);
cin.tie(0);
int n,m;
cin>>n>>m;
char a[n+1][m+1];
for(int i=1;i<=n;i++)for(int j=1;j<=m;j++)cin>>a[i][j];
int ans=0;
int pref[n+1];
for(int i=0;i<=n;i++)pref[i]=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
if(a[i][j]=='I')pref[i]++;
}
}
int suf[n+1][m+2];
for(int i=0;i<=n;i++)for(int j=0;j<=m+1;j++)suf[i][j]=0;
for(int i=1;i<=n;i++){
for(int j=m;j>=1;j--){
suf[i][j]=suf[i][j+1];
if(a[i][j]=='O')suf[i][j]++;
}
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(a[i][j]=='J'){
int Z=0;
int R=0;
for(int k=i+1;k<=n;k++){
if(a[k][j]=='I')Z++;
}
for(int k=j+1;k<=m;k++){
if(a[i][k]=='O')R++;
}
ans+=Z*R;
}
}
}
cout<<ans;
}
// bitset fora?
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
456 KB |
Output is correct |
14 |
Correct |
27 ms |
2136 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
15 ms |
1624 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
43 ms |
2908 KB |
Output is correct |
19 |
Correct |
12 ms |
2648 KB |
Output is correct |
20 |
Correct |
41 ms |
2652 KB |
Output is correct |
21 |
Correct |
36 ms |
2904 KB |
Output is correct |
22 |
Correct |
35 ms |
2652 KB |
Output is correct |
23 |
Correct |
41 ms |
2648 KB |
Output is correct |
24 |
Correct |
44 ms |
2904 KB |
Output is correct |
25 |
Correct |
13 ms |
2652 KB |
Output is correct |
26 |
Correct |
41 ms |
2648 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
456 KB |
Output is correct |
14 |
Correct |
27 ms |
2136 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
15 ms |
1624 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
43 ms |
2908 KB |
Output is correct |
19 |
Correct |
12 ms |
2648 KB |
Output is correct |
20 |
Correct |
41 ms |
2652 KB |
Output is correct |
21 |
Correct |
36 ms |
2904 KB |
Output is correct |
22 |
Correct |
35 ms |
2652 KB |
Output is correct |
23 |
Correct |
41 ms |
2648 KB |
Output is correct |
24 |
Correct |
44 ms |
2904 KB |
Output is correct |
25 |
Correct |
13 ms |
2652 KB |
Output is correct |
26 |
Correct |
41 ms |
2648 KB |
Output is correct |
27 |
Execution timed out |
1030 ms |
83624 KB |
Time limit exceeded |
28 |
Halted |
0 ms |
0 KB |
- |