#include<stdio.h>
void main()
{
	long count,n,i,j,max,m,temp,flag=0;
	scanf("%ld %ld",&i,&j);
	if (i>j) 
	{
		temp=i;
		i=j;
		j=temp;
		flag=1;
	}
	for (n=i;n<=j;n++)
	{
		m=n;
		count=1;
		while (m!=1)
		{
			if (m%2==0) m=m/2;
			else m=3*m+1;
			count++;
		}
		if (count>max) max=count;
	}
	if (flag==1)
		printf("%ld %ld %ld\n",j,i,max);
	else printf("%ld %ld %ld\n",i,j,max);
	
}

• Re:求救啊!!!测试数据对了,i,j大小和区间断点问题注意,可还是WA (14) lifeich1 2010-02-05 23:32:58