oj.uz

Submission #976053

# Submission time Handle Problem Language Result Execution time Memory
976053 2024-05-06T06:31:30 Z vjudge1 Star triangles (IZhO11_triangle) C++17
100 / 100
 396 ms 9068 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 3 ms 4952 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct
10 Correct 3 ms 4956 KB Output is correct
11 Correct 4 ms 4956 KB Output is correct
12 Correct 10 ms 5720 KB Output is correct
13 Correct 15 ms 5724 KB Output is correct
14 Correct 14 ms 5980 KB Output is correct
15 Correct 127 ms 8872 KB Output is correct
16 Correct 146 ms 9048 KB Output is correct
17 Correct 128 ms 8788 KB Output is correct
18 Correct 139 ms 8964 KB Output is correct
19 Correct 345 ms 9044 KB Output is correct
20 Correct 264 ms 9044 KB Output is correct
21 Correct 396 ms 9068 KB Output is correct
22 Correct 374 ms 9044 KB Output is correct