#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N=3002;
int n,m;
ll ans;
ll dpi[N][N],dpo[N][N];
string s,mp[N];
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> n >> m;
for(int i=1; i<=n; i++){
cin >> s;
mp[i]="x"+s;
}
for(int i=n; i>=1; i--){
for(int j=1; j<=m; j++){
dpi[i][j]=dpi[i+1][j];
if(mp[i][j]=='I')dpi[i][j]++;
}
}
for(int j=m; j>=1; j--){
for(int i=1; i<=n; i++){
dpo[i][j]=dpo[i][j+1];
if(mp[i][j]=='O')dpo[i][j]++;
}
}
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(mp[i][j]=='J'&&dpi[i][j]&&dpo[i][j])ans+=dpi[i][j]*dpo[i][j];
}
}
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3088 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3164 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3088 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3164 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
14 |
Correct |
6 ms |
16476 KB |
Output is correct |
15 |
Correct |
2 ms |
12380 KB |
Output is correct |
16 |
Correct |
2 ms |
9052 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
6 ms |
16988 KB |
Output is correct |
19 |
Correct |
4 ms |
16988 KB |
Output is correct |
20 |
Correct |
5 ms |
15704 KB |
Output is correct |
21 |
Correct |
7 ms |
17244 KB |
Output is correct |
22 |
Correct |
5 ms |
17244 KB |
Output is correct |
23 |
Correct |
5 ms |
15628 KB |
Output is correct |
24 |
Correct |
6 ms |
17240 KB |
Output is correct |
25 |
Correct |
5 ms |
17236 KB |
Output is correct |
26 |
Correct |
6 ms |
15708 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3088 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3164 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
14 |
Correct |
6 ms |
16476 KB |
Output is correct |
15 |
Correct |
2 ms |
12380 KB |
Output is correct |
16 |
Correct |
2 ms |
9052 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
6 ms |
16988 KB |
Output is correct |
19 |
Correct |
4 ms |
16988 KB |
Output is correct |
20 |
Correct |
5 ms |
15704 KB |
Output is correct |
21 |
Correct |
7 ms |
17244 KB |
Output is correct |
22 |
Correct |
5 ms |
17244 KB |
Output is correct |
23 |
Correct |
5 ms |
15628 KB |
Output is correct |
24 |
Correct |
6 ms |
17240 KB |
Output is correct |
25 |
Correct |
5 ms |
17236 KB |
Output is correct |
26 |
Correct |
6 ms |
15708 KB |
Output is correct |
27 |
Correct |
266 ms |
158248 KB |
Output is correct |
28 |
Correct |
10 ms |
63836 KB |
Output is correct |
29 |
Correct |
7 ms |
14512 KB |
Output is correct |
30 |
Correct |
1 ms |
856 KB |
Output is correct |
31 |
Correct |
208 ms |
130788 KB |
Output is correct |
32 |
Correct |
232 ms |
159056 KB |
Output is correct |
33 |
Correct |
233 ms |
158804 KB |
Output is correct |
34 |
Correct |
223 ms |
151612 KB |
Output is correct |
35 |
Correct |
245 ms |
159248 KB |
Output is correct |
36 |
Correct |
242 ms |
158800 KB |
Output is correct |
37 |
Correct |
289 ms |
159264 KB |
Output is correct |
38 |
Correct |
163 ms |
130652 KB |
Output is correct |
39 |
Correct |
162 ms |
130472 KB |
Output is correct |