#include<bits/stdc++.h>
using namespace std;
#define int long long
const int MAXN = 3010;
char M[MAXN][MAXN];
int Os[MAXN][MAXN];
int Is[MAXN][MAXN];
int32_t main(){
int h, w; cin >> h >> w;
for(int i = 0; i < h; ++i){
for(int j = 0; j < w; ++j){
cin >> M[i][j];
}
}
for(int i = 0; i < h; ++i){
for(int j = w - 1; j >= 0; --j){
Os[i][j] = (M[i][j] == 'O');
if(j + 1 < w) Os[i][j] += Os[i][j + 1];
}
}
for(int j = 0; j < w; j++){
for(int i = h - 1; i >= 0; --i){
Is[i][j] = (M[i][j] == 'I');
if(i + 1 < h) Is[i][j] += Is[i + 1][j];
}
}
int ans = 0;
for(int i = 0; i < h; ++i){
for(int j = 0; j < w; ++j){
if(M[i][j] == 'J'){
int x = Is[i][j] * Os[i][j];
ans += x;
}
}
}
cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
2 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
2 ms |
1364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
2 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
2 ms |
1364 KB |
Output is correct |
14 |
Correct |
17 ms |
8740 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
11 ms |
5168 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
20 ms |
9684 KB |
Output is correct |
19 |
Correct |
20 ms |
9556 KB |
Output is correct |
20 |
Correct |
20 ms |
9536 KB |
Output is correct |
21 |
Correct |
22 ms |
9624 KB |
Output is correct |
22 |
Correct |
20 ms |
9556 KB |
Output is correct |
23 |
Correct |
20 ms |
9496 KB |
Output is correct |
24 |
Correct |
22 ms |
9684 KB |
Output is correct |
25 |
Correct |
22 ms |
9496 KB |
Output is correct |
26 |
Correct |
22 ms |
9424 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
1 ms |
1364 KB |
Output is correct |
8 |
Correct |
2 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
1492 KB |
Output is correct |
12 |
Correct |
2 ms |
1492 KB |
Output is correct |
13 |
Correct |
2 ms |
1364 KB |
Output is correct |
14 |
Correct |
17 ms |
8740 KB |
Output is correct |
15 |
Correct |
3 ms |
4948 KB |
Output is correct |
16 |
Correct |
11 ms |
5168 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
20 ms |
9684 KB |
Output is correct |
19 |
Correct |
20 ms |
9556 KB |
Output is correct |
20 |
Correct |
20 ms |
9536 KB |
Output is correct |
21 |
Correct |
22 ms |
9624 KB |
Output is correct |
22 |
Correct |
20 ms |
9556 KB |
Output is correct |
23 |
Correct |
20 ms |
9496 KB |
Output is correct |
24 |
Correct |
22 ms |
9684 KB |
Output is correct |
25 |
Correct |
22 ms |
9496 KB |
Output is correct |
26 |
Correct |
22 ms |
9424 KB |
Output is correct |
27 |
Correct |
738 ms |
157212 KB |
Output is correct |
28 |
Correct |
14 ms |
26324 KB |
Output is correct |
29 |
Correct |
46 ms |
13852 KB |
Output is correct |
30 |
Correct |
3 ms |
736 KB |
Output is correct |
31 |
Correct |
534 ms |
131632 KB |
Output is correct |
32 |
Correct |
730 ms |
159180 KB |
Output is correct |
33 |
Correct |
726 ms |
158752 KB |
Output is correct |
34 |
Correct |
633 ms |
152616 KB |
Output is correct |
35 |
Correct |
737 ms |
159232 KB |
Output is correct |
36 |
Correct |
726 ms |
158812 KB |
Output is correct |
37 |
Correct |
762 ms |
159188 KB |
Output is correct |
38 |
Correct |
514 ms |
130632 KB |
Output is correct |
39 |
Correct |
520 ms |
131008 KB |
Output is correct |