zju2009:xxx定律

http://acm.hdu.edu.cn/showproblem.php?pid=3782

浙大计算机研究生复试上机考试-2009年

#include <stdio.h>int main(){int n,t;while (scanf("%d",&n)&&n!=0){int ans=0;while (n!=1){if (n%2==0){n=n/2;ans++;}else{n=(3*n+1)/2;ans++;}}  printf("%d\n",ans);}return 0;}