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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main()
  5. {
  6.     long long int a,k,i,c;
  7.     int t;
  8.     scanf("%d",&t);
  9.     while(t--)
  10.     {
  11.         scanf("%lld%lld",&a,&k);
  12.         c=1;
  13.         for(i=0;i<k;i++)
  14.         {
  15.             c = (a*c)%10;
  16.         }
  17.         printf("%lld\n",c);
  18.     }
  19.     return 0;
  20. }
Success #stdin #stdout 0s 2164KB
comments (?)
stdin
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2
3 10
6 2
stdout
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9
6
https://ideone.com/fLSC6D
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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