#include <bits/stdc++.h>
using namespace std;
const int N = 3001;
int m,n;
char s[N][N];
int ao[N][N],ai[N][N];
long long ans;
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> m >> n;
for(int i = 1;i <= m;i++) for(int j = 1;j <= n;j++)
{
cin >> s[i][j];
if(s[i][j]=='O') ao[i][j]++;
else if(s[i][j]=='I') ai[i][j]++;
}
for(int i = m;i >= 1;i--) for(int j = n;j >= 1;j--) ao[i][j]+=ao[i][j+1],ai[i][j]+=ai[i+1][j];
for(int i = 1;i <= m;i++) for(int j = 1;j <= n;j++) if(s[i][j]=='J') ans+=(long long)ao[i][j]*(long long)ai[i][j];
cout << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
328 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1360 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
328 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1360 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
8 ms |
7480 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4896 KB |
Output is correct |
| 16 |
Correct |
5 ms |
4312 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
11 ms |
8020 KB |
Output is correct |
| 19 |
Correct |
8 ms |
7892 KB |
Output is correct |
| 20 |
Correct |
8 ms |
7764 KB |
Output is correct |
| 21 |
Correct |
11 ms |
8028 KB |
Output is correct |
| 22 |
Correct |
9 ms |
7860 KB |
Output is correct |
| 23 |
Correct |
8 ms |
7756 KB |
Output is correct |
| 24 |
Correct |
13 ms |
8004 KB |
Output is correct |
| 25 |
Correct |
11 ms |
7828 KB |
Output is correct |
| 26 |
Correct |
8 ms |
7764 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
328 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
340 KB |
Output is correct |
| 5 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1360 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1488 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 12 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
8 ms |
7480 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4896 KB |
Output is correct |
| 16 |
Correct |
5 ms |
4312 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
11 ms |
8020 KB |
Output is correct |
| 19 |
Correct |
8 ms |
7892 KB |
Output is correct |
| 20 |
Correct |
8 ms |
7764 KB |
Output is correct |
| 21 |
Correct |
11 ms |
8028 KB |
Output is correct |
| 22 |
Correct |
9 ms |
7860 KB |
Output is correct |
| 23 |
Correct |
8 ms |
7756 KB |
Output is correct |
| 24 |
Correct |
13 ms |
8004 KB |
Output is correct |
| 25 |
Correct |
11 ms |
7828 KB |
Output is correct |
| 26 |
Correct |
8 ms |
7764 KB |
Output is correct |
| 27 |
Correct |
277 ms |
87992 KB |
Output is correct |
| 28 |
Correct |
14 ms |
25940 KB |
Output is correct |
| 29 |
Correct |
16 ms |
7764 KB |
Output is correct |
| 30 |
Correct |
2 ms |
596 KB |
Output is correct |
| 31 |
Correct |
216 ms |
72504 KB |
Output is correct |
| 32 |
Correct |
232 ms |
87920 KB |
Output is correct |
| 33 |
Correct |
187 ms |
87748 KB |
Output is correct |
| 34 |
Correct |
241 ms |
84040 KB |
Output is correct |
| 35 |
Correct |
268 ms |
87972 KB |
Output is correct |
| 36 |
Correct |
179 ms |
87628 KB |
Output is correct |
| 37 |
Correct |
328 ms |
87884 KB |
Output is correct |
| 38 |
Correct |
163 ms |
72520 KB |
Output is correct |
| 39 |
Correct |
131 ms |
72148 KB |
Output is correct |
