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  1.  
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. #define LLI long long int
  6.  
  7. LLI ans;
  8.  
  9. int main(){
  10.  
  11. int t;
  12.  
  13. scanf("%d",&t);
  14.  
  15. for(int y=0;y<=t-1;y++){
  16.  
  17.     unsigned long long int n;
  18.  
  19.     cin>>n;
  20.  
  21.     ans=2*n*n*n*n-7*n*n*n+9*n*n-4*n;//simplified form for 2*n*(n-1)*(n-1)+n*(n-1)*(n-2)+2*n*(n-1)*(n-2)*(n-2)
  22.  
  23.     cout<<ans<<endl;
  24. }
  25. }
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
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5
10000
5123
6598
4864
123
stdout
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19993000899960000
1376672652067882
3788339103199332
1118643554399232
444882882
https://ideone.com/lSN2jq
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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