#include <bits/stdc++.h>
#define int long long
using namespace std;
int sufw[3010][3010],sufh[3010][3010];
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int h,w,res=0;
cin>>h>>w;
string a[h];
for(int i=0;i<h;i++)cin>>a[i];
for(int i=0;i<w;i++){
for(int j=h-1;j>=0;j--){
sufh[j][i]=sufh[j+1][i]+(a[j][i]=='I');
}
}
for(int i=0;i<h;i++){
for(int j=w-1;j>=0;j--){
sufw[i][j]=sufw[i][j+1]+(a[i][j]=='O');
}
}
for(int i=0;i<h;i++){
for(int j=0;j<w;j++){
if(a[i][j]!='J')continue;
res+=sufh[i][j]*sufw[i][j];
}
}
cout<<res<<'\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
460 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
460 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
5 ms |
7768 KB |
Output is correct |
15 |
Correct |
2 ms |
3928 KB |
Output is correct |
16 |
Correct |
3 ms |
4700 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
6 ms |
8780 KB |
Output is correct |
19 |
Correct |
5 ms |
8740 KB |
Output is correct |
20 |
Correct |
5 ms |
8540 KB |
Output is correct |
21 |
Correct |
6 ms |
8796 KB |
Output is correct |
22 |
Correct |
5 ms |
8540 KB |
Output is correct |
23 |
Correct |
6 ms |
8536 KB |
Output is correct |
24 |
Correct |
6 ms |
8792 KB |
Output is correct |
25 |
Correct |
5 ms |
8572 KB |
Output is correct |
26 |
Correct |
5 ms |
8540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
460 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
1 ms |
1372 KB |
Output is correct |
6 |
Correct |
1 ms |
1368 KB |
Output is correct |
7 |
Correct |
1 ms |
1116 KB |
Output is correct |
8 |
Correct |
1 ms |
1372 KB |
Output is correct |
9 |
Correct |
1 ms |
1368 KB |
Output is correct |
10 |
Correct |
1 ms |
1116 KB |
Output is correct |
11 |
Correct |
1 ms |
1372 KB |
Output is correct |
12 |
Correct |
1 ms |
1372 KB |
Output is correct |
13 |
Correct |
1 ms |
1116 KB |
Output is correct |
14 |
Correct |
5 ms |
7768 KB |
Output is correct |
15 |
Correct |
2 ms |
3928 KB |
Output is correct |
16 |
Correct |
3 ms |
4700 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
6 ms |
8780 KB |
Output is correct |
19 |
Correct |
5 ms |
8740 KB |
Output is correct |
20 |
Correct |
5 ms |
8540 KB |
Output is correct |
21 |
Correct |
6 ms |
8796 KB |
Output is correct |
22 |
Correct |
5 ms |
8540 KB |
Output is correct |
23 |
Correct |
6 ms |
8536 KB |
Output is correct |
24 |
Correct |
6 ms |
8792 KB |
Output is correct |
25 |
Correct |
5 ms |
8572 KB |
Output is correct |
26 |
Correct |
5 ms |
8540 KB |
Output is correct |
27 |
Correct |
195 ms |
159088 KB |
Output is correct |
28 |
Correct |
8 ms |
19548 KB |
Output is correct |
29 |
Correct |
11 ms |
13908 KB |
Output is correct |
30 |
Correct |
1 ms |
856 KB |
Output is correct |
31 |
Correct |
130 ms |
131016 KB |
Output is correct |
32 |
Correct |
161 ms |
160140 KB |
Output is correct |
33 |
Correct |
167 ms |
159852 KB |
Output is correct |
34 |
Correct |
168 ms |
151920 KB |
Output is correct |
35 |
Correct |
178 ms |
160200 KB |
Output is correct |
36 |
Correct |
168 ms |
159756 KB |
Output is correct |
37 |
Correct |
229 ms |
160428 KB |
Output is correct |
38 |
Correct |
116 ms |
130132 KB |
Output is correct |
39 |
Correct |
125 ms |
130388 KB |
Output is correct |