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  1. #include <iostream>
  2. using namespace std;
  3. int main () {
  4. 	int D;
  5. 	unsigned long long a, b, w;
  6. 	cin >> D;
  7. 	for (int i=1; i<=D; i++)
  8. 	{
  9. 		cin >> a >> b;
  10. 		if (1 <= a,b <= 1000000000)
  11. 		{
  12. 			a = a % 10;
  13. 			w = a;
  14. 			for (int j=1; j<=b-1; j++)
  15. 			{
  16. 				w = w * a;
  17. 				if (w>=10)
  18. 				w = w % 10;
  19. 			}
  20. 		}
  21. 		cout << w << endl;
  22. 	}
  23. }
Success #stdin #stdout 2.04s 4388KB
comments (?)
stdin
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5
2 2
2 3
2 12
2 13
999999999 999999999
stdout
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4
8
6
2
9
https://ideone.com/1W2XKQ
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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