#include<bits/stdc++.h>
using namespace std;
const int N=3002;
int n,m;
int ans;
int dpi[N][N],dpo[N][N];
string s,mp[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=n; i>=1; i--){
for(int j=1; j<=m; j++){
dpi[i][j]=dpi[i+1][j];
if(mp[i][j]=='I')dpi[i][j]++;
}
}
for(int j=m; j>=1; j--){
for(int i=1; i<=n; i++){
dpo[i][j]=dpo[i][j+1];
if(mp[i][j]=='O')dpo[i][j]++;
}
}
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(mp[i][j]=='J'&&dpi[i][j]&&dpo[i][j])ans+=dpi[i][j]*dpo[i][j];
}
}
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
556 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1184 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
556 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1184 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
4 ms |
9816 KB |
Output is correct |
15 |
Correct |
2 ms |
6748 KB |
Output is correct |
16 |
Correct |
2 ms |
5040 KB |
Output is correct |
17 |
Correct |
0 ms |
552 KB |
Output is correct |
18 |
Correct |
5 ms |
10076 KB |
Output is correct |
19 |
Correct |
4 ms |
10072 KB |
Output is correct |
20 |
Incorrect |
4 ms |
9052 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
556 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1184 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
4 ms |
9816 KB |
Output is correct |
15 |
Correct |
2 ms |
6748 KB |
Output is correct |
16 |
Correct |
2 ms |
5040 KB |
Output is correct |
17 |
Correct |
0 ms |
552 KB |
Output is correct |
18 |
Correct |
5 ms |
10076 KB |
Output is correct |
19 |
Correct |
4 ms |
10072 KB |
Output is correct |
20 |
Incorrect |
4 ms |
9052 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |