#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long
const int mxN = 3e3 + 5;
ll n,cntl[mxN][mxN],cntk[mxN][mxN],m,ans;
char ch[mxN][mxN];
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> m;
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
cin >> ch[i][j];
}
}
for(int i = 0; i < n; i++){
for(int j = m - 1; j >= 0; j--){
cntl[i][j] = cntl[i][j + 1] + (ch[i][j] == 'O');
}
}
for(int j = 0; j < m; j++){
for(int i = n - 1; i >= 0; i--){
cntk[i][j] = cntk[i + 1][j] + (ch[i][j] == 'I');
}
}
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
if(ch[i][j] == 'J') ans += cntl[i][j] * cntk[i][j];
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 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 |
1 ms |
5328 KB |
Output is correct |
6 |
Correct |
1 ms |
5212 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
1 ms |
5212 KB |
Output is correct |
9 |
Correct |
1 ms |
5208 KB |
Output is correct |
10 |
Correct |
1 ms |
5212 KB |
Output is correct |
11 |
Correct |
1 ms |
5212 KB |
Output is correct |
12 |
Correct |
1 ms |
5212 KB |
Output is correct |
13 |
Correct |
2 ms |
5212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 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 |
1 ms |
5328 KB |
Output is correct |
6 |
Correct |
1 ms |
5212 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
1 ms |
5212 KB |
Output is correct |
9 |
Correct |
1 ms |
5208 KB |
Output is correct |
10 |
Correct |
1 ms |
5212 KB |
Output is correct |
11 |
Correct |
1 ms |
5212 KB |
Output is correct |
12 |
Correct |
1 ms |
5212 KB |
Output is correct |
13 |
Correct |
2 ms |
5212 KB |
Output is correct |
14 |
Correct |
8 ms |
16988 KB |
Output is correct |
15 |
Correct |
3 ms |
14684 KB |
Output is correct |
16 |
Correct |
4 ms |
11100 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
9 ms |
17752 KB |
Output is correct |
19 |
Correct |
7 ms |
17500 KB |
Output is correct |
20 |
Correct |
8 ms |
17512 KB |
Output is correct |
21 |
Correct |
9 ms |
17756 KB |
Output is correct |
22 |
Correct |
7 ms |
17500 KB |
Output is correct |
23 |
Correct |
8 ms |
17500 KB |
Output is correct |
24 |
Correct |
10 ms |
18044 KB |
Output is correct |
25 |
Correct |
8 ms |
17500 KB |
Output is correct |
26 |
Correct |
9 ms |
17448 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 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 |
1 ms |
5328 KB |
Output is correct |
6 |
Correct |
1 ms |
5212 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
1 ms |
5212 KB |
Output is correct |
9 |
Correct |
1 ms |
5208 KB |
Output is correct |
10 |
Correct |
1 ms |
5212 KB |
Output is correct |
11 |
Correct |
1 ms |
5212 KB |
Output is correct |
12 |
Correct |
1 ms |
5212 KB |
Output is correct |
13 |
Correct |
2 ms |
5212 KB |
Output is correct |
14 |
Correct |
8 ms |
16988 KB |
Output is correct |
15 |
Correct |
3 ms |
14684 KB |
Output is correct |
16 |
Correct |
4 ms |
11100 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
9 ms |
17752 KB |
Output is correct |
19 |
Correct |
7 ms |
17500 KB |
Output is correct |
20 |
Correct |
8 ms |
17512 KB |
Output is correct |
21 |
Correct |
9 ms |
17756 KB |
Output is correct |
22 |
Correct |
7 ms |
17500 KB |
Output is correct |
23 |
Correct |
8 ms |
17500 KB |
Output is correct |
24 |
Correct |
10 ms |
18044 KB |
Output is correct |
25 |
Correct |
8 ms |
17500 KB |
Output is correct |
26 |
Correct |
9 ms |
17448 KB |
Output is correct |
27 |
Correct |
263 ms |
158716 KB |
Output is correct |
28 |
Correct |
12 ms |
72024 KB |
Output is correct |
29 |
Correct |
13 ms |
15964 KB |
Output is correct |
30 |
Correct |
1 ms |
2652 KB |
Output is correct |
31 |
Correct |
159 ms |
132984 KB |
Output is correct |
32 |
Correct |
216 ms |
159044 KB |
Output is correct |
33 |
Correct |
206 ms |
158568 KB |
Output is correct |
34 |
Correct |
194 ms |
152552 KB |
Output is correct |
35 |
Correct |
207 ms |
159184 KB |
Output is correct |
36 |
Correct |
212 ms |
158708 KB |
Output is correct |
37 |
Correct |
237 ms |
159100 KB |
Output is correct |
38 |
Correct |
154 ms |
132616 KB |
Output is correct |
39 |
Correct |
159 ms |
132328 KB |
Output is correct |