小小hanoi

#include"iostream"
using namespace std;
int k=0;
void hanoi(int m , char a  ,char b, char c)
{
    if(m==1)
    {
      k++;
      printf("%c->%c ",a , c);
      return;
    }
    hanoi(m-1, a, c , b);
    printf("%c->%c ",a , c);
    k++;
    hanoi(m-1 , b, a, c);
}
int main()
{
    int n;
     char x,y,z;
     while(cin>>n)
     {
         x='A';y='B'; z='C';
         cout<<"移动过程：------->"<<endl;
         hanoi( n , x, y, z );
         cout<<endl;
         cout<<"移动次数：----->" <<endl;
         cout<<k<<endl;
     }
     return 0;
}