#include<bits/stdc++.h>
using namespace std;
int main(){
int h, w;
vector<string> grid;
cin >> h >> w;
for(int i=0; i<h; i++){
string a;
cin >> a;
grid.push_back(a);
}
int sumO[3010][3010]={}, sumI[3010][3010]={};
for(int i=h-1; i>=0; i--){
for(int j=w-1; j>=0; j--){
sumO[i][j]=sumO[i][j+1];
if(grid[i][j]=='O')sumO[i][j]++;
sumI[i][j]=sumI[i+1][j];
if(grid[i][j]=='I')sumI[i][j]++;
}
}
long long resp=0;
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
if(grid[i][j]!='J')continue;
resp+=(long long)sumO[i][j]*sumI[i][j];
}
}
cout << resp << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
40 ms |
71248 KB |
Output is correct |
2 |
Correct |
40 ms |
71312 KB |
Output is correct |
3 |
Correct |
40 ms |
71260 KB |
Output is correct |
4 |
Correct |
40 ms |
71252 KB |
Output is correct |
5 |
Correct |
40 ms |
71260 KB |
Output is correct |
6 |
Correct |
39 ms |
71252 KB |
Output is correct |
7 |
Correct |
40 ms |
71248 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
39 ms |
71256 KB |
Output is correct |
10 |
Correct |
40 ms |
71312 KB |
Output is correct |
11 |
Correct |
40 ms |
71576 KB |
Output is correct |
12 |
Correct |
39 ms |
71288 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
40 ms |
71248 KB |
Output is correct |
2 |
Correct |
40 ms |
71312 KB |
Output is correct |
3 |
Correct |
40 ms |
71260 KB |
Output is correct |
4 |
Correct |
40 ms |
71252 KB |
Output is correct |
5 |
Correct |
40 ms |
71260 KB |
Output is correct |
6 |
Correct |
39 ms |
71252 KB |
Output is correct |
7 |
Correct |
40 ms |
71248 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
39 ms |
71256 KB |
Output is correct |
10 |
Correct |
40 ms |
71312 KB |
Output is correct |
11 |
Correct |
40 ms |
71576 KB |
Output is correct |
12 |
Correct |
39 ms |
71288 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
14 |
Correct |
45 ms |
71764 KB |
Output is correct |
15 |
Correct |
39 ms |
71252 KB |
Output is correct |
16 |
Correct |
42 ms |
71356 KB |
Output is correct |
17 |
Correct |
40 ms |
71248 KB |
Output is correct |
18 |
Correct |
47 ms |
71844 KB |
Output is correct |
19 |
Correct |
44 ms |
71760 KB |
Output is correct |
20 |
Correct |
44 ms |
71740 KB |
Output is correct |
21 |
Correct |
47 ms |
71728 KB |
Output is correct |
22 |
Correct |
44 ms |
71632 KB |
Output is correct |
23 |
Correct |
45 ms |
71772 KB |
Output is correct |
24 |
Correct |
46 ms |
71788 KB |
Output is correct |
25 |
Correct |
45 ms |
71724 KB |
Output is correct |
26 |
Correct |
44 ms |
71636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
40 ms |
71248 KB |
Output is correct |
2 |
Correct |
40 ms |
71312 KB |
Output is correct |
3 |
Correct |
40 ms |
71260 KB |
Output is correct |
4 |
Correct |
40 ms |
71252 KB |
Output is correct |
5 |
Correct |
40 ms |
71260 KB |
Output is correct |
6 |
Correct |
39 ms |
71252 KB |
Output is correct |
7 |
Correct |
40 ms |
71248 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
39 ms |
71256 KB |
Output is correct |
10 |
Correct |
40 ms |
71312 KB |
Output is correct |
11 |
Correct |
40 ms |
71576 KB |
Output is correct |
12 |
Correct |
39 ms |
71288 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
14 |
Correct |
45 ms |
71764 KB |
Output is correct |
15 |
Correct |
39 ms |
71252 KB |
Output is correct |
16 |
Correct |
42 ms |
71356 KB |
Output is correct |
17 |
Correct |
40 ms |
71248 KB |
Output is correct |
18 |
Correct |
47 ms |
71844 KB |
Output is correct |
19 |
Correct |
44 ms |
71760 KB |
Output is correct |
20 |
Correct |
44 ms |
71740 KB |
Output is correct |
21 |
Correct |
47 ms |
71728 KB |
Output is correct |
22 |
Correct |
44 ms |
71632 KB |
Output is correct |
23 |
Correct |
45 ms |
71772 KB |
Output is correct |
24 |
Correct |
46 ms |
71788 KB |
Output is correct |
25 |
Correct |
45 ms |
71724 KB |
Output is correct |
26 |
Correct |
44 ms |
71636 KB |
Output is correct |
27 |
Correct |
236 ms |
87892 KB |
Output is correct |
28 |
Correct |
40 ms |
71660 KB |
Output is correct |
29 |
Correct |
54 ms |
72896 KB |
Output is correct |
30 |
Correct |
41 ms |
71252 KB |
Output is correct |
31 |
Correct |
188 ms |
83680 KB |
Output is correct |
32 |
Correct |
203 ms |
88972 KB |
Output is correct |
33 |
Correct |
203 ms |
89104 KB |
Output is correct |
34 |
Correct |
207 ms |
85588 KB |
Output is correct |
35 |
Correct |
191 ms |
88840 KB |
Output is correct |
36 |
Correct |
197 ms |
89348 KB |
Output is correct |
37 |
Correct |
270 ms |
88912 KB |
Output is correct |
38 |
Correct |
155 ms |
83628 KB |
Output is correct |
39 |
Correct |
154 ms |
83424 KB |
Output is correct |