#include <cstdio>
int main()
{
int n, i,step = 0;
scanf("%d", &n);
while(n != 1)
{
i = n % 2;
if(!i)
n /= 2;
else
n = (3 * n + 1) / 2;
step++;
}
printf("%d\n", step);
return 0;
}
PAT B1001
最新推荐文章于 2019-11-02 14:49:11 发布