#include<bits/stdc++.h>
using namespace std;
long long int m,n,i,j,dp1[3010][3010],dp2[3010][3010],ans;
string s[3010];
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin>>m>>n;
for (i=1;i<m+1;i++) cin>>s[i-1];
for (i=1;i<m+1;i++)
{
dp1[i][n]=0;
for (j=n-1;j>0;j--)
if (s[i-1][j]=='O') dp1[i][j]=dp1[i][j+1]+1;
else dp1[i][j]=dp1[i][j+1];
}
for (i=1;i<n+1;i++)
{
dp2[m][i]=0;
for (j=m-1;j>0;j--)
if (s[j][i-1]=='I') dp2[j][i]=dp2[j+1][i]+1;
else dp2[j][i]=dp2[j+1][i];
}
ans=0;
for (i=1;i<m+1;i++) for (j=1;j<n+1;j++) if (s[i-1][j-1]=='J')
ans=ans+dp1[i][j]*dp2[i][j];
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
516 KB |
Output is correct |
2 |
Correct |
5 ms |
424 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
1400 KB |
Output is correct |
6 |
Correct |
5 ms |
1404 KB |
Output is correct |
7 |
Correct |
5 ms |
1272 KB |
Output is correct |
8 |
Correct |
6 ms |
1400 KB |
Output is correct |
9 |
Correct |
5 ms |
1400 KB |
Output is correct |
10 |
Correct |
5 ms |
1272 KB |
Output is correct |
11 |
Correct |
5 ms |
1400 KB |
Output is correct |
12 |
Correct |
5 ms |
1400 KB |
Output is correct |
13 |
Correct |
5 ms |
1400 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
516 KB |
Output is correct |
2 |
Correct |
5 ms |
424 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
1400 KB |
Output is correct |
6 |
Correct |
5 ms |
1404 KB |
Output is correct |
7 |
Correct |
5 ms |
1272 KB |
Output is correct |
8 |
Correct |
6 ms |
1400 KB |
Output is correct |
9 |
Correct |
5 ms |
1400 KB |
Output is correct |
10 |
Correct |
5 ms |
1272 KB |
Output is correct |
11 |
Correct |
5 ms |
1400 KB |
Output is correct |
12 |
Correct |
5 ms |
1400 KB |
Output is correct |
13 |
Correct |
5 ms |
1400 KB |
Output is correct |
14 |
Correct |
12 ms |
7804 KB |
Output is correct |
15 |
Correct |
6 ms |
3960 KB |
Output is correct |
16 |
Correct |
8 ms |
4856 KB |
Output is correct |
17 |
Correct |
5 ms |
508 KB |
Output is correct |
18 |
Correct |
13 ms |
8824 KB |
Output is correct |
19 |
Correct |
11 ms |
8696 KB |
Output is correct |
20 |
Correct |
11 ms |
8696 KB |
Output is correct |
21 |
Correct |
13 ms |
8952 KB |
Output is correct |
22 |
Correct |
11 ms |
8696 KB |
Output is correct |
23 |
Correct |
11 ms |
8696 KB |
Output is correct |
24 |
Correct |
13 ms |
8824 KB |
Output is correct |
25 |
Correct |
11 ms |
8696 KB |
Output is correct |
26 |
Correct |
11 ms |
8696 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
516 KB |
Output is correct |
2 |
Correct |
5 ms |
424 KB |
Output is correct |
3 |
Correct |
5 ms |
504 KB |
Output is correct |
4 |
Correct |
5 ms |
504 KB |
Output is correct |
5 |
Correct |
6 ms |
1400 KB |
Output is correct |
6 |
Correct |
5 ms |
1404 KB |
Output is correct |
7 |
Correct |
5 ms |
1272 KB |
Output is correct |
8 |
Correct |
6 ms |
1400 KB |
Output is correct |
9 |
Correct |
5 ms |
1400 KB |
Output is correct |
10 |
Correct |
5 ms |
1272 KB |
Output is correct |
11 |
Correct |
5 ms |
1400 KB |
Output is correct |
12 |
Correct |
5 ms |
1400 KB |
Output is correct |
13 |
Correct |
5 ms |
1400 KB |
Output is correct |
14 |
Correct |
12 ms |
7804 KB |
Output is correct |
15 |
Correct |
6 ms |
3960 KB |
Output is correct |
16 |
Correct |
8 ms |
4856 KB |
Output is correct |
17 |
Correct |
5 ms |
508 KB |
Output is correct |
18 |
Correct |
13 ms |
8824 KB |
Output is correct |
19 |
Correct |
11 ms |
8696 KB |
Output is correct |
20 |
Correct |
11 ms |
8696 KB |
Output is correct |
21 |
Correct |
13 ms |
8952 KB |
Output is correct |
22 |
Correct |
11 ms |
8696 KB |
Output is correct |
23 |
Correct |
11 ms |
8696 KB |
Output is correct |
24 |
Correct |
13 ms |
8824 KB |
Output is correct |
25 |
Correct |
11 ms |
8696 KB |
Output is correct |
26 |
Correct |
11 ms |
8696 KB |
Output is correct |
27 |
Correct |
372 ms |
159224 KB |
Output is correct |
28 |
Correct |
15 ms |
19580 KB |
Output is correct |
29 |
Correct |
17 ms |
13944 KB |
Output is correct |
30 |
Correct |
5 ms |
904 KB |
Output is correct |
31 |
Correct |
288 ms |
130936 KB |
Output is correct |
32 |
Correct |
349 ms |
160248 KB |
Output is correct |
33 |
Correct |
340 ms |
159740 KB |
Output is correct |
34 |
Correct |
316 ms |
151800 KB |
Output is correct |
35 |
Correct |
345 ms |
160120 KB |
Output is correct |
36 |
Correct |
339 ms |
159740 KB |
Output is correct |
37 |
Correct |
408 ms |
160284 KB |
Output is correct |
38 |
Correct |
240 ms |
130168 KB |
Output is correct |
39 |
Correct |
238 ms |
130424 KB |
Output is correct |