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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int D, a, b;
  8.     cin >> D;
  9.     for (int i=0; i<D; i++)
  10.     {
  11.         cin >> a >> b;
  12.         if (b==0)
  13.             cout << "1"<<endl;
  14.         else
  15.         {
  16.             int x=1;
  17.             x=pow(a,b);
  18.             cout << x%10<<endl;
  19.         }
  20.     }
  21.     return 0;
  22. }
  23.  
Success #stdin #stdout 0s 4472KB
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https://ideone.com/KSL7fv
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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