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;
}