代码: #include <iostream>
#include <vector> #include <iterator> #include <cassert> #include<algorithm>//copy using namespace std; const int n=2; struct node { int i; node *next; }; node *Reverse(node *head) { //判断链表是否为空 assert(head != NULL && " function Reverse : list is null!"); node *temp=head->next; //链表只有一个元素情况 if(temp == NULL ) return head; //链表翻转前head-->temp-->tail,翻转后tail-->temp-->head head->next=NULL; node *tail=temp->next; while(tail != NULL) { temp->next=head; head=temp; temp=tail; tail=tail->next; } temp->next=head; //返回翻转后的链表头指针 return temp; } void Print(node *head) { while(head != NULL) { cout<<head->i<<" "; head=head->next; } cout<<endl; } int main() { node *head=NULL,*tail=NULL,*temp=NULL; head= new node; head->i=1;head->next=NULL; tail=head; for(int i=2;i<=n;++i) { temp =new node; temp->i=i;temp->next=NULL; tail->next=temp; tail=temp; } Print(head); cout<<"------------"<<endl; head=Reverse(head); Print(head);return 0;
}