#include"bits/stdc++.h"
using namespace std;
#define ll long long
#define endl "\n"
#define fastio ios_base::sync_with_stdio(false)
#define inf LLONG_MAX
int main(){
fastio;
int h,w;
cin>>h>>w;
string s[h+1];
int o[h+1][w+1],I[h+1][w+1];
for(int i=1;i<=h;i++){
cin>>s[i];
}
for(int i=0;i<=h;i++){
for(int j=0;j<=w;j++){
o[i][j]=I[i][j]=0;
}
}
for(int i=1;i<=h;i++){
for(int j=1;j<=w;j++){
o[i][j]=o[i][j-1];
I[i][j]=I[i-1][j];
if(s[i][j-1]=='I') I[i][j]++;
if(s[i][j-1]=='O') o[i][j]++;
}
}
ll ans=0;
for(int i=1;i<=h;i++){
for(int j=1;j<=w;j++){
if(s[i][j-1]=='J'){
ans+=(o[i][w]-o[i][j])*(I[h][j]-I[i][j]);
}
}
}
cout<<ans<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
332 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 |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
332 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 |
4 ms |
2132 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
2 ms |
1492 KB |
Output is correct |
17 |
Correct |
1 ms |
316 KB |
Output is correct |
18 |
Correct |
5 ms |
2772 KB |
Output is correct |
19 |
Correct |
3 ms |
2640 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
5 ms |
2772 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
3 ms |
2644 KB |
Output is correct |
24 |
Correct |
5 ms |
2792 KB |
Output is correct |
25 |
Correct |
3 ms |
2692 KB |
Output is correct |
26 |
Correct |
3 ms |
2628 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
332 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 |
4 ms |
2132 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
2 ms |
1492 KB |
Output is correct |
17 |
Correct |
1 ms |
316 KB |
Output is correct |
18 |
Correct |
5 ms |
2772 KB |
Output is correct |
19 |
Correct |
3 ms |
2640 KB |
Output is correct |
20 |
Correct |
3 ms |
2644 KB |
Output is correct |
21 |
Correct |
5 ms |
2772 KB |
Output is correct |
22 |
Correct |
3 ms |
2644 KB |
Output is correct |
23 |
Correct |
3 ms |
2644 KB |
Output is correct |
24 |
Correct |
5 ms |
2792 KB |
Output is correct |
25 |
Correct |
3 ms |
2692 KB |
Output is correct |
26 |
Correct |
3 ms |
2628 KB |
Output is correct |
27 |
Correct |
157 ms |
84388 KB |
Output is correct |
28 |
Correct |
1 ms |
596 KB |
Output is correct |
29 |
Correct |
7 ms |
6736 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
106 ms |
62112 KB |
Output is correct |
32 |
Correct |
86 ms |
88760 KB |
Output is correct |
33 |
Correct |
88 ms |
89036 KB |
Output is correct |
34 |
Correct |
128 ms |
71876 KB |
Output is correct |
35 |
Correct |
88 ms |
88780 KB |
Output is correct |
36 |
Correct |
87 ms |
89132 KB |
Output is correct |
37 |
Correct |
158 ms |
89356 KB |
Output is correct |
38 |
Correct |
60 ms |
61560 KB |
Output is correct |
39 |
Correct |
58 ms |
61848 KB |
Output is correct |