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  1. #include <stdio.h>
  2. int ubs(int x, int len)
  3. {
  4.     if(x==1) return len;
  5.     else if(x%2) return ubs(3*x+1,len+1);
  6.     else return ubs(x/2,len+1);
  7. }
  8. int main()
  9. {
  10.     int a,b;
  11.     scanf("%d %d",&a,&b);
  12.     int max, mn;
  13.     for(int i=a;i<=b;i++)
  14.     {
  15.     	int val=ubs(i,1);
  16.     	if(max<val) 
  17.     	{
  18.     		max=val;
  19.     		mn=i;
  20.     	}
  21.     }
  22.     printf("%d %d",mn,max);
  23.  
  24. }
Success #stdin #stdout 0.01s 5276KB
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https://ideone.com/8xHvUf
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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