#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int>pii;
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
int r,c;
cin >> r >> c;
char arr[r+5][c+5];
for(int x=1;x<=r;x++){
for(int y=1;y<=c;y++){
cin >> arr[x][y];
}
}
//compute psum
int horizontal[r+5][c+5];
memset(horizontal,0,sizeof(horizontal));
for(int x=1;x<=r;x++){
for(int y=c;y>=1;y--){
horizontal[x][y]=horizontal[x][y+1]+(arr[x][y]=='O');
}
}
int vertical[r+5][c+5];
memset(vertical,0,sizeof(vertical));
for(int x=1;x<=c;x++){
for(int y=r;y>=1;y--){
vertical[y][x]=vertical[y+1][x]+(arr[y][x]=='I');
}
}
int counter=0;
for(int x=1;x<=r;x++){
for(int y=1;y<=c;y++){
if(arr[x][y]=='J'){
counter+=horizontal[x][y]*vertical[x][y];
}
}
}
cout << counter;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
228 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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
228 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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
5 ms |
3668 KB |
Output is correct |
15 |
Correct |
1 ms |
320 KB |
Output is correct |
16 |
Correct |
4 ms |
2644 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
8 ms |
4692 KB |
Output is correct |
19 |
Correct |
6 ms |
4552 KB |
Output is correct |
20 |
Correct |
7 ms |
4684 KB |
Output is correct |
21 |
Correct |
7 ms |
4780 KB |
Output is correct |
22 |
Correct |
7 ms |
4556 KB |
Output is correct |
23 |
Correct |
7 ms |
4636 KB |
Output is correct |
24 |
Correct |
8 ms |
4692 KB |
Output is correct |
25 |
Correct |
7 ms |
4564 KB |
Output is correct |
26 |
Correct |
7 ms |
4644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
228 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 |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
5 ms |
3668 KB |
Output is correct |
15 |
Correct |
1 ms |
320 KB |
Output is correct |
16 |
Correct |
4 ms |
2644 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
8 ms |
4692 KB |
Output is correct |
19 |
Correct |
6 ms |
4552 KB |
Output is correct |
20 |
Correct |
7 ms |
4684 KB |
Output is correct |
21 |
Correct |
7 ms |
4780 KB |
Output is correct |
22 |
Correct |
7 ms |
4556 KB |
Output is correct |
23 |
Correct |
7 ms |
4636 KB |
Output is correct |
24 |
Correct |
8 ms |
4692 KB |
Output is correct |
25 |
Correct |
7 ms |
4564 KB |
Output is correct |
26 |
Correct |
7 ms |
4644 KB |
Output is correct |
27 |
Correct |
343 ms |
150472 KB |
Output is correct |
28 |
Correct |
1 ms |
852 KB |
Output is correct |
29 |
Correct |
20 ms |
11856 KB |
Output is correct |
30 |
Correct |
1 ms |
852 KB |
Output is correct |
31 |
Correct |
242 ms |
110796 KB |
Output is correct |
32 |
Correct |
341 ms |
158328 KB |
Output is correct |
33 |
Correct |
344 ms |
158840 KB |
Output is correct |
34 |
Correct |
287 ms |
128444 KB |
Output is correct |
35 |
Correct |
348 ms |
158264 KB |
Output is correct |
36 |
Correct |
333 ms |
158788 KB |
Output is correct |
37 |
Correct |
368 ms |
159384 KB |
Output is correct |
38 |
Correct |
223 ms |
109804 KB |
Output is correct |
39 |
Correct |
233 ms |
110352 KB |
Output is correct |