单链表的逆置是一个非常经典的问题,这里利用两个思想进行解决. 首先,我们需要看下原理图,其实两个思想都是一样的,都是使后一个的节点的 next 指针指向前一个节点,依次递推,直到第二个节点指向第一个节点,第一个节点的 next 指针指向 NULL. 第一种方法: 在链表往前走的过程中,记录前一个节点,当前节点和后一个节点,并使当前节点的 next 指针指向前一个节点,直到最后一个节点指向倒数第二个节点 算法实现如下: void reve
1074 Reversing Linked List (25 分) Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K=3, then you must output 3→2→1→6→5→4; if K=4, you must outp
Given a linked list, swap every two adjacent nodes and return its head. For example, Given 1->2->3->4, you should return the list as 2->1->4->3. Your algorithm should use only constant space. You may not modify the values in the list, on
题目链接 #include <bits/stdc++.h> using namespace std; struct node { int data; struct node *next; }; int main() { int n; struct node *head,*p; head = new node; head -> next = NULL; while(~scanf("%d", &n)) { if(n == -1) break; p = new no
链表结点类模板定义: template <class T> class SingleList; template <class T> class Node { private: T element; Node<T> *link; friend class SingleList<T>; }; 链表类末班定义: template <class T> class SingleList { public: SingleList() { first = N
class LNode { public LNode next; public int data; } /*逆置链表*/ class Nizhi { private static LNode head = new LNode();; private static LNode node; private static LNode tail; private static int index; private static LNode newhead = new LNode(); public st
问题: Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return –321 Have you thought about this? Here are some good questions to ask before coding. Bonus points for you if you have already thought through this! If the in