#include <bits/stdc++.h>
#define ll long long
using namespace std;
int main()
{
int H,W; cin >> H >> W;
vector<vector<ll>> suforbs(H,vector<ll>(W)), sufing(W,vector<ll>(H));
vector<string> grid(H);
for(int i = 0;i<H;++i){
cin >> grid[i];
}
for(int i = 0;i<H;++i){
suforbs[i][W-1] = ((grid[i][W-1] == 'O') ? 1 : 0);
for(int j = W-2;j>=0;--j){
if(grid[i][j] == 'O') suforbs[i][j] = suforbs[i][j+1]+1;
else suforbs[i][j] = suforbs[i][j+1];
}
}
for(int i = 0;i<W;++i){
sufing[i][H-1] = ((grid[H-1][i] == 'I') ? 1 : 0);
//cout << "ok";
for(int j = H-2;j>=0;--j){
if(grid[j][i] == 'I') sufing[i][j] = sufing[i][j+1]+1;
else sufing[i][j] = sufing[i][j+1];
}
//cout << "ok";
}
//cout << "ok";
ll ans = 0;
for(int i = 0;i<H-1;++i){
for(int j = 0;j<W-1;++j){
if(grid[i][j] == 'J'){
ans += suforbs[i][j+1]*sufing[j][i+1];
}
}
}
cout << ans << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
3584 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
4 ms |
2516 KB |
Output is correct |
17 |
Correct |
0 ms |
340 KB |
Output is correct |
18 |
Correct |
8 ms |
4692 KB |
Output is correct |
19 |
Correct |
6 ms |
4308 KB |
Output is correct |
20 |
Correct |
8 ms |
4564 KB |
Output is correct |
21 |
Correct |
8 ms |
4976 KB |
Output is correct |
22 |
Correct |
7 ms |
4564 KB |
Output is correct |
23 |
Correct |
7 ms |
4796 KB |
Output is correct |
24 |
Correct |
8 ms |
4920 KB |
Output is correct |
25 |
Correct |
6 ms |
4564 KB |
Output is correct |
26 |
Correct |
7 ms |
4820 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
6 ms |
3584 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
4 ms |
2516 KB |
Output is correct |
17 |
Correct |
0 ms |
340 KB |
Output is correct |
18 |
Correct |
8 ms |
4692 KB |
Output is correct |
19 |
Correct |
6 ms |
4308 KB |
Output is correct |
20 |
Correct |
8 ms |
4564 KB |
Output is correct |
21 |
Correct |
8 ms |
4976 KB |
Output is correct |
22 |
Correct |
7 ms |
4564 KB |
Output is correct |
23 |
Correct |
7 ms |
4796 KB |
Output is correct |
24 |
Correct |
8 ms |
4920 KB |
Output is correct |
25 |
Correct |
6 ms |
4564 KB |
Output is correct |
26 |
Correct |
7 ms |
4820 KB |
Output is correct |
27 |
Correct |
302 ms |
153292 KB |
Output is correct |
28 |
Correct |
2 ms |
852 KB |
Output is correct |
29 |
Correct |
17 ms |
12116 KB |
Output is correct |
30 |
Correct |
1 ms |
700 KB |
Output is correct |
31 |
Correct |
215 ms |
113868 KB |
Output is correct |
32 |
Correct |
243 ms |
160612 KB |
Output is correct |
33 |
Correct |
253 ms |
161104 KB |
Output is correct |
34 |
Correct |
252 ms |
132132 KB |
Output is correct |
35 |
Correct |
267 ms |
160656 KB |
Output is correct |
36 |
Correct |
241 ms |
161088 KB |
Output is correct |
37 |
Correct |
307 ms |
161592 KB |
Output is correct |
38 |
Correct |
169 ms |
113060 KB |
Output is correct |
39 |
Correct |
162 ms |
113500 KB |
Output is correct |