简单题
代码:
/*
by qr jobdu 1031 2014-9-28
*/
#include <stdio.h>
int main(){
int n=0;
scanf("%d",&n);
while(n!=0){
int time=0;
while(n!=1){
if(n%2==1){ //优化一下,无需else
n=3*n+1;
}
n=n/2;
time++;
}
printf("%d\n",time);
scanf("%d",&n);
}
return 0;
}