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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main()
  4. {
  5.     int t,a,b,res,x,y;
  6.     cin >> t;
  7.     int look[][4] = {{0,0,0,0},
  8. 			        {1,1,1,1},
  9. 			        {2,4,8,6},
  10. 			        {3,9,7,1},
  11. 			        {4,6,4,6},
  12. 			        {5,5,5,5},
  13. 			        {6,6,6,6},
  14. 			        {7,9,3,1},
  15. 			        {8,4,2,6},
  16. 			        {9,1,9,1}};
  17.     while (t--)
  18.     {
  19.         cin >> a >> b;
  20.         x = a%10;
  21.         y = b%4;
  22.         if ( b == 0)
  23.         res = 1;
  24.         else if ( y == 0)
  25.            res = look[x][3];
  26.         else
  27.            res = look[x][y-1];
  28.         cout << res << endl;
  29.     }
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0s 16064KB
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stdin
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3
2 5
3 9
5 0
stdout
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2
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https://ideone.com/YogVSn
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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