oj.uz

Submission #1100569

# Submission time Handle Problem Language Result Execution time Memory
1100569 2024-10-14T09:10:02 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 405 ms 9204 KB 
#include <bits/stdc++.h>
#define int long long
#define ld long double
using namespace std;
const int n=3e5+5;
 
signed main(){
    int a; cin>>a;
    int ax[n], ay[n];
    map<int,int>jumlahx;
    map<int,int>jumlahy;
    for(int i=0;i<a;i++){
        cin>>ax[i]>>ay[i];
        jumlahx[ax[i]]++;
        jumlahy[ay[i]]++;
    }
    int ans=0;
    for (int i=0;i<a;i++){
        ans+=(jumlahx[ax[i]]-1)*(jumlahy[ay[i]]-1);
    }
    cout<<ans<<endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4944 KB Output is correct
2 Correct 5 ms 4944 KB Output is correct
3 Correct 5 ms 4944 KB Output is correct
4 Correct 4 ms 5128 KB Output is correct
5 Correct 5 ms 4944 KB Output is correct
6 Correct 4 ms 4944 KB Output is correct
7 Correct 4 ms 4976 KB Output is correct
8 Correct 4 ms 4944 KB Output is correct
9 Correct 5 ms 4944 KB Output is correct
10 Correct 4 ms 4944 KB Output is correct
11 Correct 5 ms 4944 KB Output is correct
12 Correct 12 ms 5712 KB Output is correct
13 Correct 13 ms 5712 KB Output is correct
14 Correct 18 ms 5968 KB Output is correct
15 Correct 145 ms 8904 KB Output is correct
16 Correct 153 ms 9032 KB Output is correct
17 Correct 139 ms 8776 KB Output is correct
18 Correct 146 ms 8824 KB Output is correct
19 Correct 400 ms 9156 KB Output is correct
20 Correct 268 ms 9032 KB Output is correct
21 Correct 405 ms 9204 KB Output is correct
22 Correct 396 ms 9112 KB Output is correct