oj.uz

Submission #753570

# Submission time Handle Problem Language Result Execution time Memory
753570 2023-06-05T14:06:11 Z AliHasanli Star triangles (IZhO11_triangle) C++17
100 / 100
 542 ms 14368 KB 
#include<bits/stdc++.h>
using namespace std;
map<long long,long long>x,y;
int main()
{
    int n;
    cin>>n;
    vector<pair<int,int> >v;
    while(n--)
    {
        int a,b;
        cin>>a>>b;
        v.push_back({a,b});
        x[a]++;
        y[b]++;
    }
    long long ans=0;
    for(pair<int,int>d:v)
    {
        ans+=(x[d.first]-1)*(y[d.second]-1);
    }
    cout<<ans;
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 340 KB Output is correct
12 Correct 11 ms 1116 KB Output is correct
13 Correct 13 ms 1220 KB Output is correct
14 Correct 16 ms 1640 KB Output is correct
15 Correct 195 ms 7256 KB Output is correct
16 Correct 184 ms 7396 KB Output is correct
17 Correct 205 ms 7148 KB Output is correct
18 Correct 186 ms 7108 KB Output is correct
19 Correct 450 ms 14320 KB Output is correct
20 Correct 319 ms 10152 KB Output is correct
21 Correct 542 ms 14348 KB Output is correct
22 Correct 494 ms 14368 KB Output is correct