hdu 1032 The 3n + 1 problem

#include<stdio.h>
int main()
{
int n,m,i,t,j,s;
while(scanf("%d%d",&n,&m)!=EOF)
{
printf("%d %d ",n,m);
i=n<m?n:m;
m=n<m?m:n;//题目里没说输入的n,m的大小，要先判断，坑啊
for(s=0;i<=m;i++)
{
j=i;
t=1;
while(j!=1)
{
if(j%2) j=3*j+1;
else j=j>>1;
t++;
}
if(t>s) s=t;
}
printf("%d\n",s);
}
return 0;
}