#include <bits/stdc++.h>
#define rep(a,b,c) for(int a=b; a<c; a++)
#define ll long long
using namespace std;
int main(){
ll h, w;
cin>>h>>w;
string g[h];
ll ans=0, p[h][w], dp[h][w]{};
rep(i,0,h){
cin>>g[i];
rep(j,0,w){
p[i][j]=(g[i][j]=='O');
if(j) p[i][j]+=p[i][j-1];
}
}
rep(i,0,h){
rep(j,0,w){
if(i) dp[i][j]=dp[i-1][j];
if(i && g[i-1][j]=='J') dp[i][j]+=p[i-1][w-1]-p[i-1][j];
if(g[i][j]=='I') ans+=dp[i][j];
}
}
cout<<ans<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 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 |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 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 |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
7 ms |
3676 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
2608 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
10 ms |
4952 KB |
Output is correct |
19 |
Correct |
7 ms |
4444 KB |
Output is correct |
20 |
Correct |
8 ms |
4956 KB |
Output is correct |
21 |
Correct |
8 ms |
4952 KB |
Output is correct |
22 |
Correct |
7 ms |
4440 KB |
Output is correct |
23 |
Correct |
7 ms |
4940 KB |
Output is correct |
24 |
Correct |
9 ms |
4956 KB |
Output is correct |
25 |
Correct |
6 ms |
4576 KB |
Output is correct |
26 |
Correct |
7 ms |
4936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 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 |
1 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
600 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
416 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
1 ms |
344 KB |
Output is correct |
14 |
Correct |
7 ms |
3676 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
4 ms |
2608 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
10 ms |
4952 KB |
Output is correct |
19 |
Correct |
7 ms |
4444 KB |
Output is correct |
20 |
Correct |
8 ms |
4956 KB |
Output is correct |
21 |
Correct |
8 ms |
4952 KB |
Output is correct |
22 |
Correct |
7 ms |
4440 KB |
Output is correct |
23 |
Correct |
7 ms |
4940 KB |
Output is correct |
24 |
Correct |
9 ms |
4956 KB |
Output is correct |
25 |
Correct |
6 ms |
4576 KB |
Output is correct |
26 |
Correct |
7 ms |
4936 KB |
Output is correct |
27 |
Correct |
304 ms |
151532 KB |
Output is correct |
28 |
Correct |
2 ms |
860 KB |
Output is correct |
29 |
Correct |
19 ms |
12080 KB |
Output is correct |
30 |
Correct |
1 ms |
856 KB |
Output is correct |
31 |
Correct |
204 ms |
112488 KB |
Output is correct |
32 |
Correct |
231 ms |
158672 KB |
Output is correct |
33 |
Correct |
230 ms |
159104 KB |
Output is correct |
34 |
Correct |
255 ms |
130580 KB |
Output is correct |
35 |
Correct |
244 ms |
158704 KB |
Output is correct |
36 |
Correct |
224 ms |
159060 KB |
Output is correct |
37 |
Correct |
296 ms |
159528 KB |
Output is correct |
38 |
Correct |
159 ms |
111680 KB |
Output is correct |
39 |
Correct |
171 ms |
111984 KB |
Output is correct |