#include "bits/stdc++.h"
using namespace std;
const int maxn = 3005;
int n, m;
int a[maxn][maxn];
int cr[maxn][maxn], cc[maxn][maxn];
int convert(char x) {
if(x == 'J') return 0;
if(x == 'O') return 1;
return 2;
}
void solve() {
cin >> n >> m;
char ch;
for(int i = 1; i <= n; ++i) {
for(int j = 1; j <= m; ++j) {
cin >> ch;
a[i][j] = convert(ch);
}
}
vector<int> cnt;
for(int i = 1; i <= n; ++i) {
for(int j = m; j; --j) {
cr[i][j] = cr[i][j + 1] + (a[i][j] == 1);
}
}
for(int j = 1; j <= m; ++j) {
for(int i = n; i; --i) {
cc[i][j] = cc[i + 1][j] + (a[i][j] == 2);
}
}
long long ans = 0;
for(int i = 1; i <= n; ++i) {
for(int j = 1; j <= m; ++j) {
if(a[i][j] == 0) {
ans += 1ll * cc[i][j] * cr[i][j];
}
}
}
cout << ans;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
solve();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2516 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3176 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2516 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3176 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
14 |
Correct |
5 ms |
16476 KB |
Output is correct |
15 |
Correct |
2 ms |
12636 KB |
Output is correct |
16 |
Correct |
3 ms |
8796 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
6 ms |
16868 KB |
Output is correct |
19 |
Correct |
5 ms |
16732 KB |
Output is correct |
20 |
Correct |
5 ms |
16732 KB |
Output is correct |
21 |
Correct |
7 ms |
16728 KB |
Output is correct |
22 |
Correct |
5 ms |
16732 KB |
Output is correct |
23 |
Correct |
5 ms |
16732 KB |
Output is correct |
24 |
Correct |
7 ms |
16704 KB |
Output is correct |
25 |
Correct |
6 ms |
16732 KB |
Output is correct |
26 |
Correct |
5 ms |
16732 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
0 ms |
2396 KB |
Output is correct |
3 |
Correct |
0 ms |
2516 KB |
Output is correct |
4 |
Correct |
0 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3164 KB |
Output is correct |
7 |
Correct |
1 ms |
3164 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
3164 KB |
Output is correct |
10 |
Correct |
1 ms |
3164 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
3176 KB |
Output is correct |
13 |
Correct |
1 ms |
3164 KB |
Output is correct |
14 |
Correct |
5 ms |
16476 KB |
Output is correct |
15 |
Correct |
2 ms |
12636 KB |
Output is correct |
16 |
Correct |
3 ms |
8796 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
6 ms |
16868 KB |
Output is correct |
19 |
Correct |
5 ms |
16732 KB |
Output is correct |
20 |
Correct |
5 ms |
16732 KB |
Output is correct |
21 |
Correct |
7 ms |
16728 KB |
Output is correct |
22 |
Correct |
5 ms |
16732 KB |
Output is correct |
23 |
Correct |
5 ms |
16732 KB |
Output is correct |
24 |
Correct |
7 ms |
16704 KB |
Output is correct |
25 |
Correct |
6 ms |
16732 KB |
Output is correct |
26 |
Correct |
5 ms |
16732 KB |
Output is correct |
27 |
Correct |
193 ms |
114640 KB |
Output is correct |
28 |
Correct |
10 ms |
42328 KB |
Output is correct |
29 |
Correct |
8 ms |
11100 KB |
Output is correct |
30 |
Correct |
1 ms |
2652 KB |
Output is correct |
31 |
Correct |
147 ms |
95564 KB |
Output is correct |
32 |
Correct |
161 ms |
115024 KB |
Output is correct |
33 |
Correct |
205 ms |
114760 KB |
Output is correct |
34 |
Correct |
165 ms |
110416 KB |
Output is correct |
35 |
Correct |
163 ms |
114932 KB |
Output is correct |
36 |
Correct |
150 ms |
114768 KB |
Output is correct |
37 |
Correct |
222 ms |
115028 KB |
Output is correct |
38 |
Correct |
110 ms |
95592 KB |
Output is correct |
39 |
Correct |
109 ms |
95060 KB |
Output is correct |