#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
const int sz = 3005;
char a[sz][sz];
int s[3][sz][sz];
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
//freopen("JOI19_ho_t1.inp","r",stdin);
//freopen("JOI19_ho_t1.out","w",stdout);
int n, m;
cin>>n>>m;
for(int i=1; i<=n; ++i){
for(int j=1; j<=m; ++j){
cin>>a[i][j];
s[0][i][j] = s[0][i][j-1] + (a[i][j] == 'O');
s[1][i][j] = s[1][i-1][j] + (a[i][j] == 'I');
}
}
int ans = 0;
for(int i=1; i<=n; ++i){
for(int j=1; j<=m; ++j){
if(a[i][j] == 'J'){
int x = s[1][n][j] - s[1][i][j];
int y = s[0][i][m] - s[0][i][j];
ans += (x * y);
}
}
}
cout<<ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
2 ms |
7260 KB |
Output is correct |
6 |
Correct |
2 ms |
7340 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
7260 KB |
Output is correct |
9 |
Correct |
2 ms |
7260 KB |
Output is correct |
10 |
Correct |
1 ms |
5208 KB |
Output is correct |
11 |
Correct |
2 ms |
7260 KB |
Output is correct |
12 |
Correct |
1 ms |
7260 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
2 ms |
7260 KB |
Output is correct |
6 |
Correct |
2 ms |
7340 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
7260 KB |
Output is correct |
9 |
Correct |
2 ms |
7260 KB |
Output is correct |
10 |
Correct |
1 ms |
5208 KB |
Output is correct |
11 |
Correct |
2 ms |
7260 KB |
Output is correct |
12 |
Correct |
1 ms |
7260 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
14 |
Correct |
6 ms |
20316 KB |
Output is correct |
15 |
Correct |
3 ms |
14680 KB |
Output is correct |
16 |
Correct |
5 ms |
12632 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
7 ms |
20828 KB |
Output is correct |
19 |
Correct |
7 ms |
20596 KB |
Output is correct |
20 |
Correct |
6 ms |
18524 KB |
Output is correct |
21 |
Correct |
7 ms |
20828 KB |
Output is correct |
22 |
Correct |
7 ms |
20572 KB |
Output is correct |
23 |
Correct |
6 ms |
18520 KB |
Output is correct |
24 |
Correct |
7 ms |
20824 KB |
Output is correct |
25 |
Correct |
6 ms |
20572 KB |
Output is correct |
26 |
Correct |
6 ms |
18524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
2 ms |
7260 KB |
Output is correct |
6 |
Correct |
2 ms |
7340 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
7260 KB |
Output is correct |
9 |
Correct |
2 ms |
7260 KB |
Output is correct |
10 |
Correct |
1 ms |
5208 KB |
Output is correct |
11 |
Correct |
2 ms |
7260 KB |
Output is correct |
12 |
Correct |
1 ms |
7260 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
14 |
Correct |
6 ms |
20316 KB |
Output is correct |
15 |
Correct |
3 ms |
14680 KB |
Output is correct |
16 |
Correct |
5 ms |
12632 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
7 ms |
20828 KB |
Output is correct |
19 |
Correct |
7 ms |
20596 KB |
Output is correct |
20 |
Correct |
6 ms |
18524 KB |
Output is correct |
21 |
Correct |
7 ms |
20828 KB |
Output is correct |
22 |
Correct |
7 ms |
20572 KB |
Output is correct |
23 |
Correct |
6 ms |
18520 KB |
Output is correct |
24 |
Correct |
7 ms |
20824 KB |
Output is correct |
25 |
Correct |
6 ms |
20572 KB |
Output is correct |
26 |
Correct |
6 ms |
18524 KB |
Output is correct |
27 |
Correct |
179 ms |
159704 KB |
Output is correct |
28 |
Correct |
13 ms |
71772 KB |
Output is correct |
29 |
Correct |
10 ms |
16732 KB |
Output is correct |
30 |
Correct |
1 ms |
2908 KB |
Output is correct |
31 |
Correct |
100 ms |
135136 KB |
Output is correct |
32 |
Correct |
120 ms |
160044 KB |
Output is correct |
33 |
Correct |
122 ms |
160044 KB |
Output is correct |
34 |
Correct |
131 ms |
155472 KB |
Output is correct |
35 |
Correct |
128 ms |
160080 KB |
Output is correct |
36 |
Correct |
114 ms |
159668 KB |
Output is correct |
37 |
Correct |
140 ms |
160080 KB |
Output is correct |
38 |
Correct |
87 ms |
134996 KB |
Output is correct |
39 |
Correct |
88 ms |
132948 KB |
Output is correct |