Submission #971637

#	Time	Username	Problem	Language	Result	Execution time	Memory
971637		vjudge1	Star triangles (IZhO11_triangle)	C++98	0 / 100	1 ms	344 KiB

triangle

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    int ans=0;
    pair<int,int> grid[n];
    for (int i = 0; i < n; i++)
    {
        cin>>grid[i].first;
        cin>>grid[i].second;
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = i+1; j < n; j++)
        {
         if(grid[i].first==grid[j].first){
            for (int d = 0; d < n; d++)
            {
                if(d!=i && d!= j && grid[i].first==grid[d].second){
                        ans++;
                }
            }
            
         }  
        }
        
    }
    cout<<ans;
}

• Subtask 1: 0 / 100