#include<bits/stdc++.h>
using namespace std;
#define int long long int
int n,m;
string s[3005];
int suff_o[3005][3005];
int suff_i[3005][3005];
int sum;
int32_t main()
{
cin >> n >> m;
for(int i=0;i<n;i++)
cin >> s[i];
for(int i=0;i<n;i++)
{
for(int j=m-1;j>=0;j--)
{
suff_o[i][j]=suff_o[i][j+1];
if(s[i][j]=='O') suff_o[i][j]++;
}
}
for(int i=0;i<m;i++)
{
for(int j=n-1;j>=0;j--)
{
suff_i[j][i]=suff_i[j+1][i];
if(s[j][i]=='I') suff_i[j][i]++;
}
}
sum=0;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
if(s[i][j]=='J')
{
sum+=(suff_i[i][j])*(suff_o[i][j]);
}
}
}
cout << sum;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
1 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 |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
2904 KB |
Output is correct |
10 |
Correct |
1 ms |
1312 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
1 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 |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
2904 KB |
Output is correct |
10 |
Correct |
1 ms |
1312 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
14 |
Correct |
8 ms |
15148 KB |
Output is correct |
15 |
Correct |
2 ms |
10588 KB |
Output is correct |
16 |
Correct |
6 ms |
7516 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
10 ms |
15964 KB |
Output is correct |
19 |
Correct |
8 ms |
15452 KB |
Output is correct |
20 |
Correct |
8 ms |
15656 KB |
Output is correct |
21 |
Correct |
10 ms |
15960 KB |
Output is correct |
22 |
Correct |
9 ms |
15452 KB |
Output is correct |
23 |
Correct |
10 ms |
15832 KB |
Output is correct |
24 |
Correct |
10 ms |
16008 KB |
Output is correct |
25 |
Correct |
8 ms |
15452 KB |
Output is correct |
26 |
Correct |
9 ms |
15736 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
1 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 |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
1 ms |
1372 KB |
Output is correct |
8 |
Correct |
1 ms |
3416 KB |
Output is correct |
9 |
Correct |
1 ms |
2904 KB |
Output is correct |
10 |
Correct |
1 ms |
1312 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
1372 KB |
Output is correct |
14 |
Correct |
8 ms |
15148 KB |
Output is correct |
15 |
Correct |
2 ms |
10588 KB |
Output is correct |
16 |
Correct |
6 ms |
7516 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
10 ms |
15964 KB |
Output is correct |
19 |
Correct |
8 ms |
15452 KB |
Output is correct |
20 |
Correct |
8 ms |
15656 KB |
Output is correct |
21 |
Correct |
10 ms |
15960 KB |
Output is correct |
22 |
Correct |
9 ms |
15452 KB |
Output is correct |
23 |
Correct |
10 ms |
15832 KB |
Output is correct |
24 |
Correct |
10 ms |
16008 KB |
Output is correct |
25 |
Correct |
8 ms |
15452 KB |
Output is correct |
26 |
Correct |
9 ms |
15736 KB |
Output is correct |
27 |
Correct |
306 ms |
161108 KB |
Output is correct |
28 |
Correct |
11 ms |
63632 KB |
Output is correct |
29 |
Correct |
16 ms |
14340 KB |
Output is correct |
30 |
Correct |
1 ms |
860 KB |
Output is correct |
31 |
Correct |
262 ms |
133516 KB |
Output is correct |
32 |
Correct |
269 ms |
161596 KB |
Output is correct |
33 |
Correct |
284 ms |
161136 KB |
Output is correct |
34 |
Correct |
285 ms |
154732 KB |
Output is correct |
35 |
Correct |
327 ms |
161668 KB |
Output is correct |
36 |
Correct |
314 ms |
161320 KB |
Output is correct |
37 |
Correct |
353 ms |
161620 KB |
Output is correct |
38 |
Correct |
221 ms |
133252 KB |
Output is correct |
39 |
Correct |
232 ms |
132948 KB |
Output is correct |