#include <bits/stdc++.h>
#define MAX 3010
#define ll long long
using namespace std;
int n, m;
ll ans;
ll PO[MAX][MAX];
ll PI[MAX][MAX];
char v[MAX][MAX];
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> m ;
for(int g = 1 ; g <= n ; g++)
for(int h = 1 ; h <= m ; h++)
cin >> v[g][h];
for(int g = 1 ; g <= n ; g++)
for(int h = m ; h > 0 ; h--)
PO[g][h] = PO[g][h + 1] + (v[g][h] == 'O') ;
for(int g = n ; g > 0 ; g--)
for(int h = 1 ; h <= m ; h++)
PI[g][h] = PI[g + 1][h] + (v[g][h] == 'I') ;
for(int g = 1 ; g <= n ; g++)
for(int h = 1 ; h <= m ; h++)
if(v[g][h] == 'J')
ans += PO[g][h] * PI[g][h];
cout << ans ;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1400 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1400 KB |
Output is correct |
| 14 |
Correct |
14 ms |
8824 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 16 |
Correct |
9 ms |
5368 KB |
Output is correct |
| 17 |
Correct |
2 ms |
504 KB |
Output is correct |
| 18 |
Correct |
16 ms |
9848 KB |
Output is correct |
| 19 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 20 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 21 |
Correct |
15 ms |
9848 KB |
Output is correct |
| 22 |
Correct |
14 ms |
9592 KB |
Output is correct |
| 23 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 24 |
Correct |
16 ms |
9848 KB |
Output is correct |
| 25 |
Correct |
14 ms |
9592 KB |
Output is correct |
| 26 |
Correct |
15 ms |
9592 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
376 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 11 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1528 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1400 KB |
Output is correct |
| 14 |
Correct |
14 ms |
8824 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 16 |
Correct |
9 ms |
5368 KB |
Output is correct |
| 17 |
Correct |
2 ms |
504 KB |
Output is correct |
| 18 |
Correct |
16 ms |
9848 KB |
Output is correct |
| 19 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 20 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 21 |
Correct |
15 ms |
9848 KB |
Output is correct |
| 22 |
Correct |
14 ms |
9592 KB |
Output is correct |
| 23 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 24 |
Correct |
16 ms |
9848 KB |
Output is correct |
| 25 |
Correct |
14 ms |
9592 KB |
Output is correct |
| 26 |
Correct |
15 ms |
9592 KB |
Output is correct |
| 27 |
Correct |
314 ms |
150724 KB |
Output is correct |
| 28 |
Correct |
26 ms |
26360 KB |
Output is correct |
| 29 |
Correct |
28 ms |
13308 KB |
Output is correct |
| 30 |
Correct |
3 ms |
760 KB |
Output is correct |
| 31 |
Correct |
245 ms |
125636 KB |
Output is correct |
| 32 |
Correct |
290 ms |
150548 KB |
Output is correct |
| 33 |
Correct |
329 ms |
158888 KB |
Output is correct |
| 34 |
Correct |
292 ms |
152692 KB |
Output is correct |
| 35 |
Correct |
290 ms |
159336 KB |
Output is correct |
| 36 |
Correct |
294 ms |
158784 KB |
Output is correct |
| 37 |
Correct |
329 ms |
159376 KB |
Output is correct |
| 38 |
Correct |
217 ms |
130936 KB |
Output is correct |
| 39 |
Correct |
215 ms |
131196 KB |
Output is correct |
