#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N=3001;
int n,m;
ll cnt;
string mp[N],s;
ll I[N][N],O[N][N];
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> n >> m;
for(int i=1; i<=n; i++){
cin >> s;
mp[i]="x"+s;
}
for(int i=1; i<=n; i++){
for(int j=m; j>=1; j--){
O[i][j]=O[i][j+1];
if(mp[i][j]=='O')O[i][j]++;
}
}
for(int j=1; j<=m; j++){
for(int i=n; i>=1; i--){
I[i][j]=I[i+1][j];
if(mp[i][j]=='I')I[i][j]++;
}
}
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(mp[i][j]=='J')cnt+=I[i][j]*O[i][j];
}
}
cout << cnt;
return 0;
}
/*
J--O
| /
I
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1364 KB |
Output is correct |
9 |
Correct |
1 ms |
1364 KB |
Output is correct |
10 |
Correct |
1 ms |
1236 KB |
Output is correct |
11 |
Correct |
1 ms |
1364 KB |
Output is correct |
12 |
Correct |
1 ms |
1364 KB |
Output is correct |
13 |
Correct |
1 ms |
1236 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1364 KB |
Output is correct |
9 |
Correct |
1 ms |
1364 KB |
Output is correct |
10 |
Correct |
1 ms |
1236 KB |
Output is correct |
11 |
Correct |
1 ms |
1364 KB |
Output is correct |
12 |
Correct |
1 ms |
1364 KB |
Output is correct |
13 |
Correct |
1 ms |
1236 KB |
Output is correct |
14 |
Correct |
7 ms |
7636 KB |
Output is correct |
15 |
Correct |
2 ms |
3796 KB |
Output is correct |
16 |
Correct |
5 ms |
4588 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
9 ms |
8532 KB |
Output is correct |
19 |
Correct |
6 ms |
8404 KB |
Output is correct |
20 |
Correct |
6 ms |
8392 KB |
Output is correct |
21 |
Correct |
7 ms |
8836 KB |
Output is correct |
22 |
Correct |
6 ms |
8660 KB |
Output is correct |
23 |
Correct |
6 ms |
8660 KB |
Output is correct |
24 |
Correct |
8 ms |
8868 KB |
Output is correct |
25 |
Correct |
6 ms |
8636 KB |
Output is correct |
26 |
Correct |
6 ms |
8660 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
1364 KB |
Output is correct |
6 |
Correct |
1 ms |
1364 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1364 KB |
Output is correct |
9 |
Correct |
1 ms |
1364 KB |
Output is correct |
10 |
Correct |
1 ms |
1236 KB |
Output is correct |
11 |
Correct |
1 ms |
1364 KB |
Output is correct |
12 |
Correct |
1 ms |
1364 KB |
Output is correct |
13 |
Correct |
1 ms |
1236 KB |
Output is correct |
14 |
Correct |
7 ms |
7636 KB |
Output is correct |
15 |
Correct |
2 ms |
3796 KB |
Output is correct |
16 |
Correct |
5 ms |
4588 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
9 ms |
8532 KB |
Output is correct |
19 |
Correct |
6 ms |
8404 KB |
Output is correct |
20 |
Correct |
6 ms |
8392 KB |
Output is correct |
21 |
Correct |
7 ms |
8836 KB |
Output is correct |
22 |
Correct |
6 ms |
8660 KB |
Output is correct |
23 |
Correct |
6 ms |
8660 KB |
Output is correct |
24 |
Correct |
8 ms |
8868 KB |
Output is correct |
25 |
Correct |
6 ms |
8636 KB |
Output is correct |
26 |
Correct |
6 ms |
8660 KB |
Output is correct |
27 |
Incorrect |
304 ms |
157988 KB |
Output isn't correct |
28 |
Halted |
0 ms |
0 KB |
- |