#include <bits/stdc++.h>
#define int long long
using namespace std;
const int MAXN = 3010;
string grid[MAXN];
int cntI[MAXN][MAXN], cntO[MAXN][MAXN];
int32_t main()
{
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int H,W; cin >> H >> W;
for(int i = 0;i<H;++i){
cin >> grid[i];
}
for(int i = 0;i<H;++i){
int os = 0;
for(int j = W-1;j>=0;--j){
if(grid[i][j] == 'J'){
cntO[i][j] = os;
//cout << i << " " << j << " " << cntO[i][j] << "\n";
}
else if(grid[i][j] == 'O') os++;
}
}
for(int i = 0;i<W;++i){
int is = 0;
for(int j = H-1;j>=0;--j){
if(grid[j][i] == 'J'){
cntI[j][i] = is;
//cout << j << " " << i << " " << cntI[j][i] << "\n";
}
else if(grid[j][i] == 'I') is++;
}
}
int ans = 0;
for(int i = 0;i<H;++i){
for(int j = 0;j<W;++j){
if(grid[i][j] == 'J'){
//cout << i << " " << j << " " << cntI[j][i] << " " << cntO[i][j] << "\n";
ans += cntI[i][j]*cntO[i][j];
}
}
}
cout << ans << "\n";
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 |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
8796 KB |
Output is correct |
6 |
Correct |
1 ms |
8540 KB |
Output is correct |
7 |
Correct |
1 ms |
6748 KB |
Output is correct |
8 |
Correct |
1 ms |
8760 KB |
Output is correct |
9 |
Correct |
1 ms |
8792 KB |
Output is correct |
10 |
Correct |
1 ms |
6748 KB |
Output is correct |
11 |
Correct |
1 ms |
8792 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
6748 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 |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
8796 KB |
Output is correct |
6 |
Correct |
1 ms |
8540 KB |
Output is correct |
7 |
Correct |
1 ms |
6748 KB |
Output is correct |
8 |
Correct |
1 ms |
8760 KB |
Output is correct |
9 |
Correct |
1 ms |
8792 KB |
Output is correct |
10 |
Correct |
1 ms |
6748 KB |
Output is correct |
11 |
Correct |
1 ms |
8792 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
6748 KB |
Output is correct |
14 |
Correct |
5 ms |
27484 KB |
Output is correct |
15 |
Correct |
3 ms |
23132 KB |
Output is correct |
16 |
Correct |
3 ms |
15196 KB |
Output is correct |
17 |
Correct |
1 ms |
4700 KB |
Output is correct |
18 |
Correct |
6 ms |
27760 KB |
Output is correct |
19 |
Correct |
4 ms |
27484 KB |
Output is correct |
20 |
Correct |
4 ms |
27736 KB |
Output is correct |
21 |
Correct |
8 ms |
27740 KB |
Output is correct |
22 |
Correct |
4 ms |
27740 KB |
Output is correct |
23 |
Correct |
5 ms |
27740 KB |
Output is correct |
24 |
Correct |
7 ms |
27740 KB |
Output is correct |
25 |
Correct |
5 ms |
27700 KB |
Output is correct |
26 |
Correct |
4 ms |
27736 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 |
0 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
8796 KB |
Output is correct |
6 |
Correct |
1 ms |
8540 KB |
Output is correct |
7 |
Correct |
1 ms |
6748 KB |
Output is correct |
8 |
Correct |
1 ms |
8760 KB |
Output is correct |
9 |
Correct |
1 ms |
8792 KB |
Output is correct |
10 |
Correct |
1 ms |
6748 KB |
Output is correct |
11 |
Correct |
1 ms |
8792 KB |
Output is correct |
12 |
Correct |
1 ms |
8796 KB |
Output is correct |
13 |
Correct |
1 ms |
6748 KB |
Output is correct |
14 |
Correct |
5 ms |
27484 KB |
Output is correct |
15 |
Correct |
3 ms |
23132 KB |
Output is correct |
16 |
Correct |
3 ms |
15196 KB |
Output is correct |
17 |
Correct |
1 ms |
4700 KB |
Output is correct |
18 |
Correct |
6 ms |
27760 KB |
Output is correct |
19 |
Correct |
4 ms |
27484 KB |
Output is correct |
20 |
Correct |
4 ms |
27736 KB |
Output is correct |
21 |
Correct |
8 ms |
27740 KB |
Output is correct |
22 |
Correct |
4 ms |
27740 KB |
Output is correct |
23 |
Correct |
5 ms |
27740 KB |
Output is correct |
24 |
Correct |
7 ms |
27740 KB |
Output is correct |
25 |
Correct |
5 ms |
27700 KB |
Output is correct |
26 |
Correct |
4 ms |
27736 KB |
Output is correct |
27 |
Correct |
148 ms |
159528 KB |
Output is correct |
28 |
Correct |
12 ms |
105048 KB |
Output is correct |
29 |
Correct |
7 ms |
16220 KB |
Output is correct |
30 |
Correct |
2 ms |
4696 KB |
Output is correct |
31 |
Correct |
100 ms |
134384 KB |
Output is correct |
32 |
Correct |
86 ms |
160672 KB |
Output is correct |
33 |
Correct |
73 ms |
160496 KB |
Output is correct |
34 |
Correct |
115 ms |
155052 KB |
Output is correct |
35 |
Correct |
90 ms |
160372 KB |
Output is correct |
36 |
Correct |
71 ms |
160940 KB |
Output is correct |
37 |
Correct |
163 ms |
160840 KB |
Output is correct |
38 |
Correct |
52 ms |
134308 KB |
Output is correct |
39 |
Correct |
49 ms |
134380 KB |
Output is correct |