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  1. #include <iostream>
  2. using namespace std;
  3. int main()
  4. {
  5.     long double sum_1=0, sum_2=0;
  6.     int n, m;
  7.  
  8.     cin >> n >> m;
  9.  
  10.     for(int k=1;k<=n;k++)
  11.     {
  12.         for(int l=1;l<=m;l++)
  13.         {
  14.             sum_2+=(k-l)*(k-l);
  15.         }
  16.         sum_1+=k*k*k*sum_2;
  17.         sum_2-=sum_2;
  18.     }
  19.  
  20.     cout << sum_1;
  21.  
  22.     return 0;
  23. }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin 
3 6
stdout 
816
https://ideone.com/aSJVVc
A320
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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