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  1. #include<stdio.h>
  2. #include<math.h>
  3.  
  4. int main()
  5. {
  6. 	long int t;
  7. 	scanf("%d",&t);
  8. 	while(t--)
  9. 	{
  10. 		int n,k,ans=0,temp;
  11. 		scanf("%d%d",&n,&k);
  12. 		for(int i=1;i<=k;i++)
  13. 		{
  14. 			temp=n%i;
  15. 			if(temp>ans)
  16. 				ans=temp;
  17. 		}
  18. 		printf("%d\n",ans);
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 2116KB
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https://ideone.com/SxEcOm
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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