#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
#define pii pair<int,int>
typedef long long int ll;
vector<pii> jj;
const int N=3005;
vector<int> o[N];
vector<int> l[N];
int main()
{
ios_base:: sync_with_stdio(false); cin.tie(0);
int n,m; cin>>n>>m;
for(int i=1; i<=n; i++) {
for(int j=1; j<=m; j++) {
char c;
cin>>c;
if(c=='J') jj.push_back({i,j});
else if(c=='O') o[i].push_back(j);
else if(c=='I') l[j].push_back(i);
}
}
ll lol=0;
for(auto a:jj) {
int f=a.first;
int s=a.second;
//cout<<f<<" "<<s<<endl;
/*for(int z:l[s]) {
cout<<z<<" "<<s<<endl;
}*/
int ans=o[f].end()-upper_bound(o[f].begin(),o[f].end(),s);
int anss=l[s].end()-upper_bound(l[s].begin(),l[s].end(),f);
//cout<<ans<<" "<<anss<<endl;
lol+=ans*anss;
//break;
}
cout<<lol<<endl;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
2 ms |
504 KB |
Output is correct |
| 3 |
Correct |
2 ms |
504 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
2 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
2 ms |
632 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
2 ms |
504 KB |
Output is correct |
| 13 |
Correct |
2 ms |
632 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
2 ms |
504 KB |
Output is correct |
| 3 |
Correct |
2 ms |
504 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
2 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
2 ms |
632 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
2 ms |
504 KB |
Output is correct |
| 13 |
Correct |
2 ms |
632 KB |
Output is correct |
| 14 |
Correct |
16 ms |
2044 KB |
Output is correct |
| 15 |
Correct |
2 ms |
504 KB |
Output is correct |
| 16 |
Correct |
7 ms |
1524 KB |
Output is correct |
| 17 |
Correct |
3 ms |
504 KB |
Output is correct |
| 18 |
Correct |
20 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
10 ms |
2040 KB |
Output is correct |
| 20 |
Correct |
10 ms |
2104 KB |
Output is correct |
| 21 |
Correct |
22 ms |
2672 KB |
Output is correct |
| 22 |
Correct |
13 ms |
2416 KB |
Output is correct |
| 23 |
Correct |
10 ms |
2104 KB |
Output is correct |
| 24 |
Correct |
22 ms |
2416 KB |
Output is correct |
| 25 |
Correct |
11 ms |
2292 KB |
Output is correct |
| 26 |
Correct |
11 ms |
2124 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
504 KB |
Output is correct |
| 2 |
Correct |
2 ms |
504 KB |
Output is correct |
| 3 |
Correct |
2 ms |
504 KB |
Output is correct |
| 4 |
Correct |
2 ms |
504 KB |
Output is correct |
| 5 |
Correct |
3 ms |
504 KB |
Output is correct |
| 6 |
Correct |
3 ms |
504 KB |
Output is correct |
| 7 |
Correct |
2 ms |
504 KB |
Output is correct |
| 8 |
Correct |
3 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
2 ms |
632 KB |
Output is correct |
| 11 |
Correct |
3 ms |
504 KB |
Output is correct |
| 12 |
Correct |
2 ms |
504 KB |
Output is correct |
| 13 |
Correct |
2 ms |
632 KB |
Output is correct |
| 14 |
Correct |
16 ms |
2044 KB |
Output is correct |
| 15 |
Correct |
2 ms |
504 KB |
Output is correct |
| 16 |
Correct |
7 ms |
1524 KB |
Output is correct |
| 17 |
Correct |
3 ms |
504 KB |
Output is correct |
| 18 |
Correct |
20 ms |
2668 KB |
Output is correct |
| 19 |
Correct |
10 ms |
2040 KB |
Output is correct |
| 20 |
Correct |
10 ms |
2104 KB |
Output is correct |
| 21 |
Correct |
22 ms |
2672 KB |
Output is correct |
| 22 |
Correct |
13 ms |
2416 KB |
Output is correct |
| 23 |
Correct |
10 ms |
2104 KB |
Output is correct |
| 24 |
Correct |
22 ms |
2416 KB |
Output is correct |
| 25 |
Correct |
11 ms |
2292 KB |
Output is correct |
| 26 |
Correct |
11 ms |
2124 KB |
Output is correct |
| 27 |
Correct |
771 ms |
62280 KB |
Output is correct |
| 28 |
Correct |
3 ms |
760 KB |
Output is correct |
| 29 |
Correct |
27 ms |
5604 KB |
Output is correct |
| 30 |
Correct |
4 ms |
760 KB |
Output is correct |
| 31 |
Correct |
545 ms |
44448 KB |
Output is correct |
| 32 |
Correct |
420 ms |
61056 KB |
Output is correct |
| 33 |
Correct |
445 ms |
64936 KB |
Output is correct |
| 34 |
Correct |
642 ms |
61520 KB |
Output is correct |
| 35 |
Correct |
539 ms |
65332 KB |
Output is correct |
| 36 |
Correct |
404 ms |
64756 KB |
Output is correct |
| 37 |
Correct |
867 ms |
75116 KB |
Output is correct |
| 38 |
Correct |
227 ms |
41868 KB |
Output is correct |
| 39 |
Correct |
273 ms |
49700 KB |
Output is correct |
