#include <bits/stdc++.h>
using namespace std;
const int N=3005;
int n,m;
string gr[N];
int co[N][N];
int main()
{
cin >> n >> m;
for(int i=0;i<n;i++) cin >> gr[i];
for(int i=n-1;i>=0;i--)
{
for(int j=0;j<m;j++)
{
co[i][j]=(gr[i][j]=='I')+co[i+1][j];
}
}
long long ans=0;
for(int i=0;i<n;i++)
{
int cur=0;
for(int j=m-1;j>=0;j--)
{
cur+=gr[i][j]=='O';
if(gr[i][j]=='J')
{
ans+=1LL*cur*co[i][j];
}
}
}
printf("%lld\n", ans);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
860 KB |
Output is correct |
6 |
Correct |
1 ms |
860 KB |
Output is correct |
7 |
Correct |
1 ms |
860 KB |
Output is correct |
8 |
Correct |
1 ms |
800 KB |
Output is correct |
9 |
Correct |
1 ms |
860 KB |
Output is correct |
10 |
Correct |
1 ms |
860 KB |
Output is correct |
11 |
Correct |
1 ms |
860 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
1 ms |
860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
860 KB |
Output is correct |
6 |
Correct |
1 ms |
860 KB |
Output is correct |
7 |
Correct |
1 ms |
860 KB |
Output is correct |
8 |
Correct |
1 ms |
800 KB |
Output is correct |
9 |
Correct |
1 ms |
860 KB |
Output is correct |
10 |
Correct |
1 ms |
860 KB |
Output is correct |
11 |
Correct |
1 ms |
860 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
1 ms |
860 KB |
Output is correct |
14 |
Correct |
6 ms |
5720 KB |
Output is correct |
15 |
Correct |
1 ms |
4700 KB |
Output is correct |
16 |
Correct |
3 ms |
3232 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
6 ms |
6236 KB |
Output is correct |
19 |
Correct |
5 ms |
5980 KB |
Output is correct |
20 |
Correct |
5 ms |
5980 KB |
Output is correct |
21 |
Correct |
6 ms |
6236 KB |
Output is correct |
22 |
Correct |
5 ms |
5980 KB |
Output is correct |
23 |
Correct |
5 ms |
5980 KB |
Output is correct |
24 |
Correct |
6 ms |
6232 KB |
Output is correct |
25 |
Correct |
5 ms |
5980 KB |
Output is correct |
26 |
Correct |
5 ms |
6116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
860 KB |
Output is correct |
6 |
Correct |
1 ms |
860 KB |
Output is correct |
7 |
Correct |
1 ms |
860 KB |
Output is correct |
8 |
Correct |
1 ms |
800 KB |
Output is correct |
9 |
Correct |
1 ms |
860 KB |
Output is correct |
10 |
Correct |
1 ms |
860 KB |
Output is correct |
11 |
Correct |
1 ms |
860 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
1 ms |
860 KB |
Output is correct |
14 |
Correct |
6 ms |
5720 KB |
Output is correct |
15 |
Correct |
1 ms |
4700 KB |
Output is correct |
16 |
Correct |
3 ms |
3232 KB |
Output is correct |
17 |
Correct |
1 ms |
344 KB |
Output is correct |
18 |
Correct |
6 ms |
6236 KB |
Output is correct |
19 |
Correct |
5 ms |
5980 KB |
Output is correct |
20 |
Correct |
5 ms |
5980 KB |
Output is correct |
21 |
Correct |
6 ms |
6236 KB |
Output is correct |
22 |
Correct |
5 ms |
5980 KB |
Output is correct |
23 |
Correct |
5 ms |
5980 KB |
Output is correct |
24 |
Correct |
6 ms |
6232 KB |
Output is correct |
25 |
Correct |
5 ms |
5980 KB |
Output is correct |
26 |
Correct |
5 ms |
6116 KB |
Output is correct |
27 |
Correct |
164 ms |
55608 KB |
Output is correct |
28 |
Correct |
4 ms |
27228 KB |
Output is correct |
29 |
Correct |
11 ms |
4956 KB |
Output is correct |
30 |
Correct |
1 ms |
604 KB |
Output is correct |
31 |
Correct |
115 ms |
45440 KB |
Output is correct |
32 |
Correct |
146 ms |
55852 KB |
Output is correct |
33 |
Correct |
159 ms |
55488 KB |
Output is correct |
34 |
Correct |
133 ms |
52604 KB |
Output is correct |
35 |
Correct |
140 ms |
55632 KB |
Output is correct |
36 |
Correct |
138 ms |
55700 KB |
Output is correct |
37 |
Correct |
166 ms |
55888 KB |
Output is correct |
38 |
Correct |
123 ms |
45392 KB |
Output is correct |
39 |
Correct |
106 ms |
45208 KB |
Output is correct |