#include <bits/stdc++.h>
using namespace std;
#define N 3005
#define ll long long int
#define sz(x) (int)x.size()
#define ff first
#define ss second
ll T, n, a[N][N], b[N][N], m;
string s[N];
int main(){
ios::sync_with_stdio(false); cin.tie(0);
cin >> n >> m;
for(int i = 1; i <= n; i++){
cin >> s[i];
s[i] = '#' + s[i];
}
for(int i = 1; i <= n; i++){
for(int j = m; j >= 1; j--){
a[i][j] = a[i][j+1];
if(s[i][j] == 'O') a[i][j]++;
}
}
for(int i = 1; i <= m; i++){
for(int j = n; j >= 1; j--){
b[j][i] = b[j+1][i];
if(s[j][i] == 'I') b[j][i]++;
}
}
ll ans = 0;
for(int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
if(s[i][j] == 'J') ans += (b[i][j] * a[i][j]);
}
}
cout << ans << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3160 KB |
Output is correct |
7 |
Correct |
1 ms |
2904 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2908 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3160 KB |
Output is correct |
7 |
Correct |
1 ms |
2904 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2908 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
14 |
Correct |
5 ms |
14940 KB |
Output is correct |
15 |
Correct |
3 ms |
10844 KB |
Output is correct |
16 |
Correct |
3 ms |
7660 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
7 ms |
15620 KB |
Output is correct |
19 |
Correct |
5 ms |
15644 KB |
Output is correct |
20 |
Correct |
5 ms |
15508 KB |
Output is correct |
21 |
Correct |
10 ms |
15640 KB |
Output is correct |
22 |
Correct |
7 ms |
15708 KB |
Output is correct |
23 |
Correct |
5 ms |
15452 KB |
Output is correct |
24 |
Correct |
7 ms |
15616 KB |
Output is correct |
25 |
Correct |
5 ms |
15708 KB |
Output is correct |
26 |
Correct |
5 ms |
15452 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
3164 KB |
Output is correct |
6 |
Correct |
1 ms |
3160 KB |
Output is correct |
7 |
Correct |
1 ms |
2904 KB |
Output is correct |
8 |
Correct |
1 ms |
3164 KB |
Output is correct |
9 |
Correct |
1 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2908 KB |
Output is correct |
11 |
Correct |
1 ms |
3164 KB |
Output is correct |
12 |
Correct |
1 ms |
2908 KB |
Output is correct |
13 |
Correct |
1 ms |
2908 KB |
Output is correct |
14 |
Correct |
5 ms |
14940 KB |
Output is correct |
15 |
Correct |
3 ms |
10844 KB |
Output is correct |
16 |
Correct |
3 ms |
7660 KB |
Output is correct |
17 |
Correct |
1 ms |
604 KB |
Output is correct |
18 |
Correct |
7 ms |
15620 KB |
Output is correct |
19 |
Correct |
5 ms |
15644 KB |
Output is correct |
20 |
Correct |
5 ms |
15508 KB |
Output is correct |
21 |
Correct |
10 ms |
15640 KB |
Output is correct |
22 |
Correct |
7 ms |
15708 KB |
Output is correct |
23 |
Correct |
5 ms |
15452 KB |
Output is correct |
24 |
Correct |
7 ms |
15616 KB |
Output is correct |
25 |
Correct |
5 ms |
15708 KB |
Output is correct |
26 |
Correct |
5 ms |
15452 KB |
Output is correct |
27 |
Correct |
154 ms |
158292 KB |
Output is correct |
28 |
Correct |
11 ms |
63580 KB |
Output is correct |
29 |
Correct |
7 ms |
14004 KB |
Output is correct |
30 |
Correct |
1 ms |
860 KB |
Output is correct |
31 |
Correct |
111 ms |
130396 KB |
Output is correct |
32 |
Correct |
116 ms |
159052 KB |
Output is correct |
33 |
Correct |
109 ms |
158808 KB |
Output is correct |
34 |
Correct |
142 ms |
151216 KB |
Output is correct |
35 |
Correct |
116 ms |
159056 KB |
Output is correct |
36 |
Correct |
103 ms |
158800 KB |
Output is correct |
37 |
Correct |
168 ms |
159316 KB |
Output is correct |
38 |
Correct |
83 ms |
129828 KB |
Output is correct |
39 |
Correct |
81 ms |
129876 KB |
Output is correct |