#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pi;
char arr[3005][3005];
short dp[3005][3005];
short DP[3005][3005];
int main(){
ios_base::sync_with_stdio(false); cin.tie(NULL);
int n,m; cin>>n>>m;
for(int i=1; i<=n; i++) cin>>(arr[i]+1);
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(arr[i][j]=='O') dp[i][j] = 1;
if(arr[i][j]=='I') DP[i][j] = 1;
}
for(int j=m; j>=1; j--) dp[i][j]+=dp[i][j+1];
}
for(int i=1; i<=m; i++){
for(int j=n; j>=1; j--) DP[j][i]+=DP[j+1][i];
}
ll ans = 0;
for(int i=1; i<=n; i++){
for(int j=1; j<=m; j++){
if(arr[i][j]!='J') continue;
ll w = dp[i][j];
w*=DP[i][j];
ans+=w;
}
}
cout<<ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
328 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1352 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
328 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1352 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
6 ms |
6740 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4944 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3796 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
7 ms |
6996 KB |
Output is correct |
| 19 |
Correct |
5 ms |
6996 KB |
Output is correct |
| 20 |
Correct |
5 ms |
6868 KB |
Output is correct |
| 21 |
Correct |
7 ms |
6996 KB |
Output is correct |
| 22 |
Correct |
7 ms |
6868 KB |
Output is correct |
| 23 |
Correct |
5 ms |
6892 KB |
Output is correct |
| 24 |
Correct |
8 ms |
6996 KB |
Output is correct |
| 25 |
Correct |
5 ms |
6980 KB |
Output is correct |
| 26 |
Correct |
6 ms |
6908 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
340 KB |
Output is correct |
| 4 |
Correct |
1 ms |
328 KB |
Output is correct |
| 5 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 7 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 8 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
1352 KB |
Output is correct |
| 10 |
Correct |
1 ms |
1356 KB |
Output is correct |
| 11 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 14 |
Correct |
6 ms |
6740 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4944 KB |
Output is correct |
| 16 |
Correct |
3 ms |
3796 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
7 ms |
6996 KB |
Output is correct |
| 19 |
Correct |
5 ms |
6996 KB |
Output is correct |
| 20 |
Correct |
5 ms |
6868 KB |
Output is correct |
| 21 |
Correct |
7 ms |
6996 KB |
Output is correct |
| 22 |
Correct |
7 ms |
6868 KB |
Output is correct |
| 23 |
Correct |
5 ms |
6892 KB |
Output is correct |
| 24 |
Correct |
8 ms |
6996 KB |
Output is correct |
| 25 |
Correct |
5 ms |
6980 KB |
Output is correct |
| 26 |
Correct |
6 ms |
6908 KB |
Output is correct |
| 27 |
Correct |
206 ms |
52608 KB |
Output is correct |
| 28 |
Correct |
10 ms |
25812 KB |
Output is correct |
| 29 |
Correct |
7 ms |
4692 KB |
Output is correct |
| 30 |
Correct |
1 ms |
468 KB |
Output is correct |
| 31 |
Correct |
166 ms |
43300 KB |
Output is correct |
| 32 |
Correct |
130 ms |
53144 KB |
Output is correct |
| 33 |
Correct |
125 ms |
53044 KB |
Output is correct |
| 34 |
Correct |
184 ms |
50032 KB |
Output is correct |
| 35 |
Correct |
137 ms |
53152 KB |
Output is correct |
| 36 |
Correct |
124 ms |
52960 KB |
Output is correct |
| 37 |
Correct |
215 ms |
53148 KB |
Output is correct |
| 38 |
Correct |
93 ms |
43240 KB |
Output is correct |
| 39 |
Correct |
88 ms |
43020 KB |
Output is correct |
