#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int h, w;
cin >> h >> w;
vector<string> stones(h);
for(int i=0; i<h; i++){
cin >> stones[i];
}
vector<vector<int> > orbs(h, vector<int> (w, 0));
vector<vector<int> > ingos(h, vector<int> (w, 0));
for(int i=0; i<h; i++){
if(stones[i][w-1]=='O'){
orbs[i][w-1]=1;
}
for(int j=w-2; j>=0; j--){
orbs[i][j]=orbs[i][j+1]+(stones[i][j]=='O'? 1: 0);
}
}
for(int j=0; j<w; j++){
if(stones[h-1][j]=='I'){
ingos[h-1][j]=1;
}
for(int i=h-2; i>=0; i--){
ingos[i][j]=ingos[i+1][j]+(stones[i][j]=='I'? 1: 0);
}
}
int ans=0;
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
if(stones[i][j]=='J'){
ans+=orbs[i][j]*ingos[i][j];
}
}
}
cout << ans << "\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
460 KB |
Output is correct |
| 7 |
Correct |
1 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
460 KB |
Output is correct |
| 11 |
Correct |
1 ms |
448 KB |
Output is correct |
| 12 |
Correct |
1 ms |
444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
460 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
460 KB |
Output is correct |
| 7 |
Correct |
1 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
460 KB |
Output is correct |
| 11 |
Correct |
1 ms |
448 KB |
Output is correct |
| 12 |
Correct |
1 ms |
444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
460 KB |
Output is correct |
| 14 |
Correct |
5 ms |
3660 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2632 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
6 ms |
4788 KB |
Output is correct |
| 19 |
Correct |
5 ms |
4556 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4676 KB |
Output is correct |
| 21 |
Correct |
6 ms |
4684 KB |
Output is correct |
| 22 |
Correct |
5 ms |
4556 KB |
Output is correct |
| 23 |
Correct |
5 ms |
4684 KB |
Output is correct |
| 24 |
Correct |
6 ms |
4684 KB |
Output is correct |
| 25 |
Correct |
5 ms |
4516 KB |
Output is correct |
| 26 |
Correct |
5 ms |
4684 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
1 ms |
460 KB |
Output is correct |
| 7 |
Correct |
1 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
460 KB |
Output is correct |
| 11 |
Correct |
1 ms |
448 KB |
Output is correct |
| 12 |
Correct |
1 ms |
444 KB |
Output is correct |
| 13 |
Correct |
1 ms |
460 KB |
Output is correct |
| 14 |
Correct |
5 ms |
3660 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
3 ms |
2632 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
6 ms |
4788 KB |
Output is correct |
| 19 |
Correct |
5 ms |
4556 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4676 KB |
Output is correct |
| 21 |
Correct |
6 ms |
4684 KB |
Output is correct |
| 22 |
Correct |
5 ms |
4556 KB |
Output is correct |
| 23 |
Correct |
5 ms |
4684 KB |
Output is correct |
| 24 |
Correct |
6 ms |
4684 KB |
Output is correct |
| 25 |
Correct |
5 ms |
4516 KB |
Output is correct |
| 26 |
Correct |
5 ms |
4684 KB |
Output is correct |
| 27 |
Correct |
284 ms |
143292 KB |
Output is correct |
| 28 |
Correct |
1 ms |
844 KB |
Output is correct |
| 29 |
Correct |
13 ms |
11684 KB |
Output is correct |
| 30 |
Correct |
1 ms |
716 KB |
Output is correct |
| 31 |
Correct |
189 ms |
105600 KB |
Output is correct |
| 32 |
Correct |
268 ms |
150740 KB |
Output is correct |
| 33 |
Correct |
266 ms |
151272 KB |
Output is correct |
| 34 |
Correct |
230 ms |
122324 KB |
Output is correct |
| 35 |
Correct |
264 ms |
150788 KB |
Output is correct |
| 36 |
Correct |
259 ms |
151244 KB |
Output is correct |
| 37 |
Correct |
303 ms |
151748 KB |
Output is correct |
| 38 |
Correct |
171 ms |
104724 KB |
Output is correct |
| 39 |
Correct |
169 ms |
105156 KB |
Output is correct |
