#include <bits/stdc++.h>
using namespace std;
const int N = 3e3 + 2;
int h , w , dpo[N][N] , dpi[N][N];
char c[N][N];
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
cin >> h >> w;
for(int i = 0 ; i < h ; i++) for(int j = 0 ; j < w ; j++)
cin >> c[i][j];
long long ans = 0;
for(int i = h - 1 ; i >= 0 ; i--) for(int j = w - 1 ; j >= 0 ; j--)
{
dpi[i][j] = (i == h - 1 ? 0 : dpi[i + 1][j]);
if(c[i][j] == 'I')
dpi[i][j]++;
dpo[i][j] = (j == w - 1 ? 0 : dpo[i][j + 1]);
if(c[i][j] == 'O')
dpo[i][j]++;
if(c[i][j] == 'J')
ans += dpi[i][j] * dpo[i][j];
}
cout << ans << '\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 6 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 7 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 8 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 9 |
Correct |
1 ms |
6744 KB |
Output is correct |
| 10 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 11 |
Correct |
1 ms |
6616 KB |
Output is correct |
| 12 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 13 |
Correct |
1 ms |
6748 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 6 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 7 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 8 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 9 |
Correct |
1 ms |
6744 KB |
Output is correct |
| 10 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 11 |
Correct |
1 ms |
6616 KB |
Output is correct |
| 12 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 13 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 14 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 15 |
Correct |
2 ms |
14800 KB |
Output is correct |
| 16 |
Correct |
3 ms |
10844 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 18 |
Correct |
6 ms |
19276 KB |
Output is correct |
| 19 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 20 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 21 |
Correct |
6 ms |
19288 KB |
Output is correct |
| 22 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 23 |
Correct |
5 ms |
19344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
19288 KB |
Output is correct |
| 25 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 26 |
Correct |
5 ms |
19292 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4560 KB |
Output is correct |
| 3 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 4 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 5 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 6 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 7 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 8 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 9 |
Correct |
1 ms |
6744 KB |
Output is correct |
| 10 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 11 |
Correct |
1 ms |
6616 KB |
Output is correct |
| 12 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 13 |
Correct |
1 ms |
6748 KB |
Output is correct |
| 14 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 15 |
Correct |
2 ms |
14800 KB |
Output is correct |
| 16 |
Correct |
3 ms |
10844 KB |
Output is correct |
| 17 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 18 |
Correct |
6 ms |
19276 KB |
Output is correct |
| 19 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 20 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 21 |
Correct |
6 ms |
19288 KB |
Output is correct |
| 22 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 23 |
Correct |
5 ms |
19344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
19288 KB |
Output is correct |
| 25 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 26 |
Correct |
5 ms |
19292 KB |
Output is correct |
| 27 |
Correct |
153 ms |
87912 KB |
Output is correct |
| 28 |
Correct |
7 ms |
66136 KB |
Output is correct |
| 29 |
Correct |
9 ms |
11356 KB |
Output is correct |
| 30 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 31 |
Correct |
103 ms |
76392 KB |
Output is correct |
| 32 |
Correct |
107 ms |
88432 KB |
Output is correct |
| 33 |
Correct |
117 ms |
88660 KB |
Output is correct |
| 34 |
Correct |
119 ms |
85880 KB |
Output is correct |
| 35 |
Correct |
109 ms |
88428 KB |
Output is correct |
| 36 |
Correct |
102 ms |
88416 KB |
Output is correct |
| 37 |
Correct |
141 ms |
88552 KB |
Output is correct |
| 38 |
Correct |
76 ms |
76768 KB |
Output is correct |
| 39 |
Correct |
73 ms |
76376 KB |
Output is correct |
