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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main()
  5. {
  6. 	int T;
  7. 	unsigned int a,b;
  8. 	int num;
  9. 	int * result;
  10. 	int i,j;
  11.  
  12. 	scanf("%d",&T);
  13.  
  14. 	result = (int *)malloc(sizeof(int)*T);
  15. 	for(i=0;i<T;i++)
  16. 	{
  17. 		scanf("%d %d",&a,&b);
  18. 		for(j=1,num=a;j<b;j++)
  19. 		{
  20. 			num=num*a;
  21. 			num=num%10;
  22. 		}
  23. 		if(num==0)
  24. 		{
  25. 			result[i]=10;
  26. 		}
  27. 		else
  28. 		{
  29. 			result[i]=num;
  30. 		}
  31. 	}
  32. 	for(i=0;i<T;i++)
  33. 	{
  34. 		printf("%d\n",result[i]);
  35. 	}
  36.  
  37. 	free(result);
  38. 	return 0;
  39. }
Success #stdin #stdout 0s 4296KB
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https://ideone.com/wel9op
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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