#include<bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
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]={};
long long resp=0;
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]++;
if(grid[i][j]!='J')continue;
resp+=sumO[i][j]*sumI[i][j];
}
}
cout << resp << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
71252 KB |
Output is correct |
2 |
Correct |
39 ms |
71252 KB |
Output is correct |
3 |
Correct |
40 ms |
71252 KB |
Output is correct |
4 |
Correct |
40 ms |
71228 KB |
Output is correct |
5 |
Correct |
41 ms |
71252 KB |
Output is correct |
6 |
Correct |
43 ms |
71240 KB |
Output is correct |
7 |
Correct |
40 ms |
71260 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
41 ms |
71252 KB |
Output is correct |
10 |
Correct |
39 ms |
71256 KB |
Output is correct |
11 |
Correct |
40 ms |
71324 KB |
Output is correct |
12 |
Correct |
40 ms |
71204 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
71252 KB |
Output is correct |
2 |
Correct |
39 ms |
71252 KB |
Output is correct |
3 |
Correct |
40 ms |
71252 KB |
Output is correct |
4 |
Correct |
40 ms |
71228 KB |
Output is correct |
5 |
Correct |
41 ms |
71252 KB |
Output is correct |
6 |
Correct |
43 ms |
71240 KB |
Output is correct |
7 |
Correct |
40 ms |
71260 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
41 ms |
71252 KB |
Output is correct |
10 |
Correct |
39 ms |
71256 KB |
Output is correct |
11 |
Correct |
40 ms |
71324 KB |
Output is correct |
12 |
Correct |
40 ms |
71204 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
14 |
Correct |
41 ms |
71508 KB |
Output is correct |
15 |
Correct |
40 ms |
71248 KB |
Output is correct |
16 |
Correct |
41 ms |
71316 KB |
Output is correct |
17 |
Correct |
40 ms |
71352 KB |
Output is correct |
18 |
Correct |
42 ms |
71504 KB |
Output is correct |
19 |
Correct |
41 ms |
71504 KB |
Output is correct |
20 |
Correct |
40 ms |
71516 KB |
Output is correct |
21 |
Correct |
49 ms |
71508 KB |
Output is correct |
22 |
Correct |
44 ms |
71636 KB |
Output is correct |
23 |
Correct |
44 ms |
71508 KB |
Output is correct |
24 |
Correct |
43 ms |
71480 KB |
Output is correct |
25 |
Correct |
44 ms |
71736 KB |
Output is correct |
26 |
Correct |
41 ms |
71512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
71252 KB |
Output is correct |
2 |
Correct |
39 ms |
71252 KB |
Output is correct |
3 |
Correct |
40 ms |
71252 KB |
Output is correct |
4 |
Correct |
40 ms |
71228 KB |
Output is correct |
5 |
Correct |
41 ms |
71252 KB |
Output is correct |
6 |
Correct |
43 ms |
71240 KB |
Output is correct |
7 |
Correct |
40 ms |
71260 KB |
Output is correct |
8 |
Correct |
40 ms |
71260 KB |
Output is correct |
9 |
Correct |
41 ms |
71252 KB |
Output is correct |
10 |
Correct |
39 ms |
71256 KB |
Output is correct |
11 |
Correct |
40 ms |
71324 KB |
Output is correct |
12 |
Correct |
40 ms |
71204 KB |
Output is correct |
13 |
Correct |
40 ms |
71252 KB |
Output is correct |
14 |
Correct |
41 ms |
71508 KB |
Output is correct |
15 |
Correct |
40 ms |
71248 KB |
Output is correct |
16 |
Correct |
41 ms |
71316 KB |
Output is correct |
17 |
Correct |
40 ms |
71352 KB |
Output is correct |
18 |
Correct |
42 ms |
71504 KB |
Output is correct |
19 |
Correct |
41 ms |
71504 KB |
Output is correct |
20 |
Correct |
40 ms |
71516 KB |
Output is correct |
21 |
Correct |
49 ms |
71508 KB |
Output is correct |
22 |
Correct |
44 ms |
71636 KB |
Output is correct |
23 |
Correct |
44 ms |
71508 KB |
Output is correct |
24 |
Correct |
43 ms |
71480 KB |
Output is correct |
25 |
Correct |
44 ms |
71736 KB |
Output is correct |
26 |
Correct |
41 ms |
71512 KB |
Output is correct |
27 |
Correct |
117 ms |
79860 KB |
Output is correct |
28 |
Correct |
40 ms |
71404 KB |
Output is correct |
29 |
Correct |
44 ms |
71900 KB |
Output is correct |
30 |
Correct |
40 ms |
71260 KB |
Output is correct |
31 |
Correct |
86 ms |
77624 KB |
Output is correct |
32 |
Correct |
71 ms |
80032 KB |
Output is correct |
33 |
Correct |
70 ms |
80116 KB |
Output is correct |
34 |
Correct |
92 ms |
78516 KB |
Output is correct |
35 |
Correct |
70 ms |
80284 KB |
Output is correct |
36 |
Correct |
72 ms |
80340 KB |
Output is correct |
37 |
Correct |
117 ms |
80332 KB |
Output is correct |
38 |
Correct |
64 ms |
77400 KB |
Output is correct |
39 |
Correct |
64 ms |
77392 KB |
Output is correct |