Submission #864563

#	Time	Username	Problem	Language	Result	Execution time	Memory
864563		vnm06	Duathlon (APIO18_duathlon)	C++14	0 / 100	12 ms	1680 KiB

count_triplets

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

long long n, m;

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>m;
    for(int i=0; i<m; i++)
    {
        int v, u;
        cin>>v>>u;
       ///gr[v].push_back(u);
       ///gr[u].push_back(v);
    }
    if(m==n) cout<<n*(n-1)*(n-2)<<endl;
    else cout<<n*(n-1)*(n-2)/3<<endl;
    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 0 / 8
• Subtask 4: 0 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 15
• Subtask 7: 0 / 20
• Subtask 8: 0 / 8
• Subtask 9: 0 / 10