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  1. #include <iostream>
  2. using namespace std;
  3. int main()
  4. {
  5.     unsigned long long a, b, wynik;
  6.     short D;
  7.     cin>>D;
  8.     while(D--)
  9.     {
  10.         cin>>a>>b;
  11.         b=(b-1)%4;
  12.         wynik=a;
  13.         for(int i=1; i<=b; i++)
  14.             wynik*=a;
  15.         cout<<wynik%10<<endl;
  16.     }
  17.     return 0;
  18. }
Success #stdin #stdout 0s 4328KB
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https://ideone.com/wL3ZBs
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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