代码如下:
#include<stdio.h>
int main()
{
int n,p;
int count=1;
printf("输入一个整数n:");
scanf("%d",&n);
if(n==1)
{
printf("n=%d",n);
}
do
{
switch(p=n%2)
{
case 0:
n=n/2;break;
case 1:
n=3*n+1;break;
}
printf("n=%d",n);
printf("\n");
}
while(n!=1);
}