#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pb push_back
#define skdkdjfkv ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
void solve(){
ll h, w;
cin >> h >> w;
string s[h+1];
for(int i=1; i<=h; i++){
cin >> s[i];
}
ll sufho[h+5][w+5], sufvi[w+5][h+5];
for(int i=1; i<=h; i++){
sufho[i][w+1]=0;
for(int j=w; j>=1; j--){
sufho[i][j]=sufho[i][j+1]+(s[i][j-1]=='O');
}
}
for(int j=1; j<=w; j++){
sufvi[j][h+1]=0;
for(int i=h; i>=1; i--){
sufvi[j][i]=sufvi[j][i+1]+(s[i][j-1]=='I');
}
}
ll ans=0;
for(int i=1; i<=h; i++){
for(int j=1; j<=w; j++){
if(s[i][j-1]=='J'){
ans+=sufho[i][j+1]*sufvi[j][i+1];
}
}
}
cout << ans;
}
int main(){
skdkdjfkv
ll tc=1;
//cin >> tc;
while(tc--){
solve();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
600 KB |
Output is correct |
14 |
Correct |
3 ms |
3732 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
2652 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
3 ms |
4700 KB |
Output is correct |
19 |
Correct |
3 ms |
4444 KB |
Output is correct |
20 |
Correct |
3 ms |
4444 KB |
Output is correct |
21 |
Correct |
4 ms |
4700 KB |
Output is correct |
22 |
Correct |
3 ms |
4548 KB |
Output is correct |
23 |
Correct |
3 ms |
4440 KB |
Output is correct |
24 |
Correct |
3 ms |
4700 KB |
Output is correct |
25 |
Correct |
3 ms |
4444 KB |
Output is correct |
26 |
Correct |
3 ms |
4444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
600 KB |
Output is correct |
14 |
Correct |
3 ms |
3732 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
2652 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
3 ms |
4700 KB |
Output is correct |
19 |
Correct |
3 ms |
4444 KB |
Output is correct |
20 |
Correct |
3 ms |
4444 KB |
Output is correct |
21 |
Correct |
4 ms |
4700 KB |
Output is correct |
22 |
Correct |
3 ms |
4548 KB |
Output is correct |
23 |
Correct |
3 ms |
4440 KB |
Output is correct |
24 |
Correct |
3 ms |
4700 KB |
Output is correct |
25 |
Correct |
3 ms |
4444 KB |
Output is correct |
26 |
Correct |
3 ms |
4444 KB |
Output is correct |
27 |
Correct |
127 ms |
142928 KB |
Output is correct |
28 |
Correct |
1 ms |
860 KB |
Output is correct |
29 |
Correct |
7 ms |
11328 KB |
Output is correct |
30 |
Correct |
0 ms |
860 KB |
Output is correct |
31 |
Correct |
109 ms |
105300 KB |
Output is correct |
32 |
Correct |
111 ms |
150356 KB |
Output is correct |
33 |
Correct |
112 ms |
151012 KB |
Output is correct |
34 |
Correct |
107 ms |
122100 KB |
Output is correct |
35 |
Correct |
116 ms |
150352 KB |
Output is correct |
36 |
Correct |
132 ms |
150868 KB |
Output is correct |
37 |
Correct |
133 ms |
151376 KB |
Output is correct |
38 |
Correct |
70 ms |
104532 KB |
Output is correct |
39 |
Correct |
83 ms |
104784 KB |
Output is correct |