#include<iostream>
using namespace std;
int length(int x);
int main()
{
	long i,j,tem;
	int max;
	while(cin>>i>>j)
	{
		cout<<i<<" "<<j<<" ";
		if(i>j)
		{
			tem=i;
			j=tem;
			i=j;
		}
     	max=0;
		for(int m=i;m<=j;m++)
		{
            if(max<length(m))
				max=length(m);
		}
		cout<<max<<endl;	
	}
	return 0;
}
int length(int x)
{
	int count=0;
	count=0;
	while(x!=1)	
	{
		count++;
		if((x%2)==0)x=x/2;
		else
			x=(3*x+1) ;
	}
	return count+1;
} 

• Re:怎么老是wrong answer 啊 (643) liangkangqi 2006-03-22 22:48:10