Source Code

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int main()
{
     ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  ll t,n;
  cin>>t;
  while(t--){
      cin>>n;
      ll ans=0;
      
      for(int i=0;i<n;i++){
          ans+=i*n+(i+1);
    
      }
      cout<<ans<<"\n";
      
     
      
  }
   
      return 0;
}
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Ali's Game ateeq
GNU G++17
2085 ms
1.5 MB
Time Limit Exceeded