#include <bits/stdc++.h>
using namespace std;
const int MxN = 3005;
int n , m , d[MxN][MxN] , r[MxN][MxN];
long long ans;
char grid[MxN][MxN];
int main()
{
cin >> n >> m;
for(int i=1 ; i<=n ; i++)for(int j=1 ; j<=m ; j++)cin >> grid[i][j];
for(int i=n ; i>=1 ; i--)for(int j=1 ; j<=m ; j++)d[i][j] = d[i+1][j] + (grid[i][j]=='I');
for(int i=1 ; i<=n ; i++)for(int j=m ; j>=1 ; j--)r[i][j] = r[i][j+1] + (grid[i][j]=='O');
for(int i=1 ; i<=n ; i++)for(int j=1 ; j<=m ; j++)if(grid[i][j]=='J')ans+=d[i][j]*r[i][j];
cout << ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
312 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1464 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1468 KB |
Output is correct |
| 10 |
Correct |
2 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 |
2 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 |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
312 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1464 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1468 KB |
Output is correct |
| 10 |
Correct |
2 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 |
2 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
15 ms |
7444 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4920 KB |
Output is correct |
| 16 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
19 ms |
7856 KB |
Output is correct |
| 19 |
Correct |
18 ms |
7704 KB |
Output is correct |
| 20 |
Correct |
17 ms |
7716 KB |
Output is correct |
| 21 |
Correct |
19 ms |
7968 KB |
Output is correct |
| 22 |
Correct |
18 ms |
7884 KB |
Output is correct |
| 23 |
Correct |
19 ms |
7764 KB |
Output is correct |
| 24 |
Correct |
19 ms |
8020 KB |
Output is correct |
| 25 |
Correct |
18 ms |
7856 KB |
Output is correct |
| 26 |
Correct |
17 ms |
7756 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
312 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 6 |
Correct |
2 ms |
1464 KB |
Output is correct |
| 7 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 8 |
Correct |
2 ms |
1492 KB |
Output is correct |
| 9 |
Correct |
2 ms |
1468 KB |
Output is correct |
| 10 |
Correct |
2 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 |
2 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
15 ms |
7444 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4920 KB |
Output is correct |
| 16 |
Correct |
9 ms |
4300 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
19 ms |
7856 KB |
Output is correct |
| 19 |
Correct |
18 ms |
7704 KB |
Output is correct |
| 20 |
Correct |
17 ms |
7716 KB |
Output is correct |
| 21 |
Correct |
19 ms |
7968 KB |
Output is correct |
| 22 |
Correct |
18 ms |
7884 KB |
Output is correct |
| 23 |
Correct |
19 ms |
7764 KB |
Output is correct |
| 24 |
Correct |
19 ms |
8020 KB |
Output is correct |
| 25 |
Correct |
18 ms |
7856 KB |
Output is correct |
| 26 |
Correct |
17 ms |
7756 KB |
Output is correct |
| 27 |
Correct |
531 ms |
87968 KB |
Output is correct |
| 28 |
Correct |
14 ms |
26068 KB |
Output is correct |
| 29 |
Correct |
42 ms |
7756 KB |
Output is correct |
| 30 |
Correct |
2 ms |
584 KB |
Output is correct |
| 31 |
Correct |
388 ms |
72588 KB |
Output is correct |
| 32 |
Correct |
524 ms |
88404 KB |
Output is correct |
| 33 |
Correct |
548 ms |
88088 KB |
Output is correct |
| 34 |
Correct |
461 ms |
84172 KB |
Output is correct |
| 35 |
Correct |
537 ms |
88372 KB |
Output is correct |
| 36 |
Correct |
524 ms |
88140 KB |
Output is correct |
| 37 |
Correct |
555 ms |
88540 KB |
Output is correct |
| 38 |
Correct |
376 ms |
72480 KB |
Output is correct |
| 39 |
Correct |
373 ms |
72224 KB |
Output is correct |
