#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
#pragma GCC optimize ("O4")
#pragma GCC optimize ("fast-math")
#pragma GCC optimize ("unroll-loops")
using namespace std;
#define int long long
#define ll long long
#define XX first
#define YY second
#define pb push_back
#define sz (x) int(x.size())
#define pf pop_front
#define pob pop_back
#define pff push_front
const int NMAX = 3e3;
int n, m;
char v[NMAX + 1][NMAX + 1];
int w[NMAX + 1][NMAX + 1];
int matrix[NMAX + 1][NMAX + 1];
signed main(void){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin >> n >> m;
for (int i = 1; i <= n; ++ i){
for (int j = 1; j <= m; ++ j){
cin >> v[i][j];
matrix[i][j] = matrix[i][j - 1];
w[i][j] = w[i - 1][j];
if (v[i][j] == 'O')
matrix[i][j] ++;
if (v[i][j] == 'I')
w[i][j] ++;
}
}
int sum = 0;
for (int i = 1; i <= n; ++ i){
for (int j = 1; j <= m; ++ j){
if (v[i][j] == 'J'){
sum += (w[n][j] - w[i - 1][j]) * (matrix[i][m] - matrix[i][j - 1]);
}
}
}
cout << sum << "\n";
return 0 ^ 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2512 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5332 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5344 KB |
Output is correct |
9 |
Correct |
1 ms |
5212 KB |
Output is correct |
10 |
Correct |
1 ms |
5292 KB |
Output is correct |
11 |
Correct |
2 ms |
5208 KB |
Output is correct |
12 |
Correct |
2 ms |
5212 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2512 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5332 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5344 KB |
Output is correct |
9 |
Correct |
1 ms |
5212 KB |
Output is correct |
10 |
Correct |
1 ms |
5292 KB |
Output is correct |
11 |
Correct |
2 ms |
5208 KB |
Output is correct |
12 |
Correct |
2 ms |
5212 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
14 |
Correct |
8 ms |
18780 KB |
Output is correct |
15 |
Correct |
3 ms |
16732 KB |
Output is correct |
16 |
Correct |
4 ms |
12636 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
10 ms |
20824 KB |
Output is correct |
19 |
Correct |
7 ms |
20828 KB |
Output is correct |
20 |
Correct |
6 ms |
20572 KB |
Output is correct |
21 |
Correct |
9 ms |
20828 KB |
Output is correct |
22 |
Correct |
7 ms |
20824 KB |
Output is correct |
23 |
Correct |
8 ms |
20568 KB |
Output is correct |
24 |
Correct |
9 ms |
20828 KB |
Output is correct |
25 |
Correct |
8 ms |
20572 KB |
Output is correct |
26 |
Correct |
6 ms |
20572 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2512 KB |
Output is correct |
5 |
Correct |
2 ms |
5212 KB |
Output is correct |
6 |
Correct |
2 ms |
5332 KB |
Output is correct |
7 |
Correct |
1 ms |
5212 KB |
Output is correct |
8 |
Correct |
2 ms |
5344 KB |
Output is correct |
9 |
Correct |
1 ms |
5212 KB |
Output is correct |
10 |
Correct |
1 ms |
5292 KB |
Output is correct |
11 |
Correct |
2 ms |
5208 KB |
Output is correct |
12 |
Correct |
2 ms |
5212 KB |
Output is correct |
13 |
Correct |
1 ms |
5212 KB |
Output is correct |
14 |
Correct |
8 ms |
18780 KB |
Output is correct |
15 |
Correct |
3 ms |
16732 KB |
Output is correct |
16 |
Correct |
4 ms |
12636 KB |
Output is correct |
17 |
Correct |
1 ms |
2652 KB |
Output is correct |
18 |
Correct |
10 ms |
20824 KB |
Output is correct |
19 |
Correct |
7 ms |
20828 KB |
Output is correct |
20 |
Correct |
6 ms |
20572 KB |
Output is correct |
21 |
Correct |
9 ms |
20828 KB |
Output is correct |
22 |
Correct |
7 ms |
20824 KB |
Output is correct |
23 |
Correct |
8 ms |
20568 KB |
Output is correct |
24 |
Correct |
9 ms |
20828 KB |
Output is correct |
25 |
Correct |
8 ms |
20572 KB |
Output is correct |
26 |
Correct |
6 ms |
20572 KB |
Output is correct |
27 |
Correct |
256 ms |
158512 KB |
Output is correct |
28 |
Correct |
12 ms |
71772 KB |
Output is correct |
29 |
Correct |
9 ms |
16984 KB |
Output is correct |
30 |
Correct |
2 ms |
2784 KB |
Output is correct |
31 |
Correct |
159 ms |
133596 KB |
Output is correct |
32 |
Correct |
141 ms |
158928 KB |
Output is correct |
33 |
Correct |
119 ms |
158592 KB |
Output is correct |
34 |
Correct |
187 ms |
156252 KB |
Output is correct |
35 |
Correct |
152 ms |
158800 KB |
Output is correct |
36 |
Correct |
130 ms |
158572 KB |
Output is correct |
37 |
Correct |
249 ms |
158776 KB |
Output is correct |
38 |
Correct |
104 ms |
133456 KB |
Output is correct |
39 |
Correct |
102 ms |
133740 KB |
Output is correct |