#include<bits/stdc++.h>
using namespace std;
const int N=3001;
int n,m;
int cnt;
int sumO[N][N],sumI[N][N];
bool vis[N][N];
string arr[N],s;
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
int n,m;
cin >> n >> m;
for(int y=1; y<=n; y++){
cin >> s;
arr[y]="x"+s;
}
for(int i=1; i<=n; i++){
for(int j=m; j>=1; j--){
sumO[i][j]+=sumO[i][j+1];
if(arr[i][j]=='O')sumO[i][j]++;
}
}
for(int j=1; j<=m; j++){
for(int i=n; i>=1; i--){
sumI[i][j]+=sumI[i+1][j];
if(arr[i][j]=='I')sumI[i][j]++;
}
}
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(arr[i][j]=='J'){
cnt+=sumO[i][j]*sumI[i][j];
}
}
}
cout << cnt;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1192 KB |
Output is correct |
10 |
Correct |
1 ms |
1108 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1236 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1192 KB |
Output is correct |
10 |
Correct |
1 ms |
1108 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1236 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
14 |
Correct |
7 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
3796 KB |
Output is correct |
16 |
Correct |
4 ms |
3668 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
8 ms |
6868 KB |
Output is correct |
19 |
Correct |
6 ms |
6676 KB |
Output is correct |
20 |
Incorrect |
7 ms |
6684 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1192 KB |
Output is correct |
10 |
Correct |
1 ms |
1108 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1236 KB |
Output is correct |
13 |
Correct |
1 ms |
1108 KB |
Output is correct |
14 |
Correct |
7 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
3796 KB |
Output is correct |
16 |
Correct |
4 ms |
3668 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
8 ms |
6868 KB |
Output is correct |
19 |
Correct |
6 ms |
6676 KB |
Output is correct |
20 |
Incorrect |
7 ms |
6684 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |