#include <bits/stdc++.h>
using namespace std;
int main()
{
//freopen("i.txt","r",stdin);
cin.tie(0);
ios_base::sync_with_stdio(false);
int rows, cols;
cin >> rows >> cols;
int arr[rows][cols];
for(int r = 0;r < rows;r++){
string s;
cin >> s;
for(int c = 0;c < cols;c++){
if(s[c] == 'J') arr[r][c] = 0;
else if(s[c] == 'O') arr[r][c] = 1;
else arr[r][c] = 2;
}
}
int O[rows][cols];
int I[rows][cols];
for(int r = 0;r < rows;r++){
for(int c = 0;c < cols;c++){
O[r][c] = 0;
I[r][c] = 0;
}
}
for(int r = 0;r < rows;r++){
for(int c = cols-1;c >= 0;c--){
if(arr[r][c] == 1) O[r][c]++;
if(c != cols-1) O[r][c] += O[r][c+1];
}
}
for(int c = 0;c < cols;c++){
for(int r = rows-1;r >= 0;r--){
if(arr[r][c] == 2) I[r][c]++;
if(r != rows-1) I[r][c] += I[r+1][c];
}
}
long long ans = 0ll;
for(int r = 0;r < rows;r++){
for(int c = 0;c < cols;c++){
if(arr[r][c] == 0){
long long x = O[r][c];
long long y = I[r][c];
ans += x * y;
}
}
}
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
512 KB |
Output is correct |
11 |
Correct |
3 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
512 KB |
Output is correct |
11 |
Correct |
3 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
9 ms |
2688 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
1932 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
11 ms |
3456 KB |
Output is correct |
19 |
Correct |
10 ms |
3328 KB |
Output is correct |
20 |
Correct |
9 ms |
3328 KB |
Output is correct |
21 |
Correct |
13 ms |
3456 KB |
Output is correct |
22 |
Correct |
9 ms |
3328 KB |
Output is correct |
23 |
Correct |
12 ms |
3456 KB |
Output is correct |
24 |
Correct |
12 ms |
3456 KB |
Output is correct |
25 |
Correct |
8 ms |
3328 KB |
Output is correct |
26 |
Correct |
8 ms |
3456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
512 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
512 KB |
Output is correct |
11 |
Correct |
3 ms |
512 KB |
Output is correct |
12 |
Correct |
2 ms |
384 KB |
Output is correct |
13 |
Correct |
2 ms |
512 KB |
Output is correct |
14 |
Correct |
9 ms |
2688 KB |
Output is correct |
15 |
Correct |
5 ms |
384 KB |
Output is correct |
16 |
Correct |
6 ms |
1932 KB |
Output is correct |
17 |
Correct |
2 ms |
384 KB |
Output is correct |
18 |
Correct |
11 ms |
3456 KB |
Output is correct |
19 |
Correct |
10 ms |
3328 KB |
Output is correct |
20 |
Correct |
9 ms |
3328 KB |
Output is correct |
21 |
Correct |
13 ms |
3456 KB |
Output is correct |
22 |
Correct |
9 ms |
3328 KB |
Output is correct |
23 |
Correct |
12 ms |
3456 KB |
Output is correct |
24 |
Correct |
12 ms |
3456 KB |
Output is correct |
25 |
Correct |
8 ms |
3328 KB |
Output is correct |
26 |
Correct |
8 ms |
3456 KB |
Output is correct |
27 |
Correct |
524 ms |
108408 KB |
Output is correct |
28 |
Correct |
3 ms |
640 KB |
Output is correct |
29 |
Correct |
18 ms |
8448 KB |
Output is correct |
30 |
Correct |
3 ms |
640 KB |
Output is correct |
31 |
Correct |
368 ms |
79776 KB |
Output is correct |
32 |
Correct |
403 ms |
113912 KB |
Output is correct |
33 |
Correct |
411 ms |
114412 KB |
Output is correct |
34 |
Correct |
456 ms |
92536 KB |
Output is correct |
35 |
Correct |
444 ms |
113964 KB |
Output is correct |
36 |
Correct |
426 ms |
114424 KB |
Output is correct |
37 |
Correct |
530 ms |
114824 KB |
Output is correct |
38 |
Correct |
284 ms |
79096 KB |
Output is correct |
39 |
Correct |
349 ms |
79352 KB |
Output is correct |