汉诺塔（3个圆盘）

 1 #include <fstream>
 2 #include <iostream>
 3 
 4 using namespace std;
 5 
 6 int step=0;
 7 
 8 void move(char x,char y);
 9 void hannoi(int n,char a,char b,char c);
10 
11 int main(){
12     int n;
13     scanf("%d",&n);
14     hannoi(n,‘a‘,‘b‘,‘c‘);
15     return 0;
16 }
17 void move(char x,char y){
18     cout<<"move "<<++step<<" from "<<x<<" to "<<y<<endl;
19 }
20 void hannoi(int n,char a,char b,char c){
21     if(n){
22         hannoi(n-1,a,c,b);
23         move(a,b);
24         hannoi(n-1,c,b,a);
25     }
26 }