#include <bits/stdc++.h>
using namespace std;
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n,m;
cin >> n >> m;
char arr[n+1][m+1];
int pref1[n+1][m+1];
int pref2[n+1][m+1];
for(int i=0;i<=n;i++){
for(int j=0;j<=m;j++){
pref1[i][j]=0;
pref2[i][j]=0;
}
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cin >> arr[i][j];
pref1[i][j]=pref1[i][j-1];
pref2[i][j]=pref2[i-1][j];
if(arr[i][j]=='O'){
pref1[i][j]=pref1[i][j-1]+1;
}
if(arr[i][j]=='I'){
pref2[i][j]=pref2[i-1][j]+1;
}
}
}
long long ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(arr[i][j]=='J'){
ans+=((pref1[i][m]-pref1[i][j])*(pref2[n][j]-pref2[i][j]));
}
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
324 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
324 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
2200 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
3 ms |
1572 KB |
Output is correct |
17 |
Correct |
1 ms |
424 KB |
Output is correct |
18 |
Correct |
8 ms |
2768 KB |
Output is correct |
19 |
Correct |
6 ms |
2548 KB |
Output is correct |
20 |
Correct |
5 ms |
2644 KB |
Output is correct |
21 |
Correct |
8 ms |
2768 KB |
Output is correct |
22 |
Correct |
7 ms |
2644 KB |
Output is correct |
23 |
Correct |
6 ms |
2644 KB |
Output is correct |
24 |
Correct |
8 ms |
2760 KB |
Output is correct |
25 |
Correct |
7 ms |
2676 KB |
Output is correct |
26 |
Correct |
5 ms |
2720 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
256 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
320 KB |
Output is correct |
7 |
Correct |
1 ms |
324 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
2200 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
3 ms |
1572 KB |
Output is correct |
17 |
Correct |
1 ms |
424 KB |
Output is correct |
18 |
Correct |
8 ms |
2768 KB |
Output is correct |
19 |
Correct |
6 ms |
2548 KB |
Output is correct |
20 |
Correct |
5 ms |
2644 KB |
Output is correct |
21 |
Correct |
8 ms |
2768 KB |
Output is correct |
22 |
Correct |
7 ms |
2644 KB |
Output is correct |
23 |
Correct |
6 ms |
2644 KB |
Output is correct |
24 |
Correct |
8 ms |
2760 KB |
Output is correct |
25 |
Correct |
7 ms |
2676 KB |
Output is correct |
26 |
Correct |
5 ms |
2720 KB |
Output is correct |
27 |
Correct |
261 ms |
83500 KB |
Output is correct |
28 |
Correct |
1 ms |
596 KB |
Output is correct |
29 |
Correct |
14 ms |
6668 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
195 ms |
61384 KB |
Output is correct |
32 |
Correct |
220 ms |
87832 KB |
Output is correct |
33 |
Correct |
177 ms |
88172 KB |
Output is correct |
34 |
Correct |
230 ms |
71244 KB |
Output is correct |
35 |
Correct |
223 ms |
87836 KB |
Output is correct |
36 |
Correct |
175 ms |
88044 KB |
Output is correct |
37 |
Correct |
271 ms |
88548 KB |
Output is correct |
38 |
Correct |
134 ms |
61000 KB |
Output is correct |
39 |
Correct |
125 ms |
61160 KB |
Output is correct |