LeetCode--Insertion Sort List Question Sort a linked list using insertion sort. Solution 我的解法,假设第一个节点都比其他节点小,这样感觉好移动指针一些,所以添加了一个额外的最小的节点. Code class Solution { public: ListNode *insertionSortList(ListNode *head) { if (head == NULL) return head; ListN…
Sort a linked list using insertion sort. 仍然是一个很简洁的题目,让我们用插入排序给链表排序:这里说到插入排序.能够来回想一下, 最主要的入门排序算法.就是插入排序了.时间复杂度为n^2.最主要的插入排序是基于数组实现的.以下给出基于数组实现的插入排序,来体会一个插入排序的思想: 下面仅为数组实现.不是解题代码,没兴趣能够跳过. void insertionsort (int a[], int N) { for (int i = 1; i < N; i++…
Sort List Sort a linked list in O(n log n) time using constant space complexity. Have you been asked this question in an interview? Yes 说明:归并排序: 时间 O(nlogn),空间 O(1). 每次将链表一分为二, 然后再合并.快排(用两个指针) /** * D…
原题地址:http://oj.leetcode.com/problems/insertion-sort-list/ 题意:对链表进行插入排序. 解题思路:首先来对插入排序有一个直观的认识,来自维基百科. 代码循环部分图示: 代码: class Solution: # @param head, a ListNode # @return a ListNode def insertionSortList(self, head): if not head: return head dummy = Lis…
Insertion Sort List Sort a linked list using insertion sort. SOLUTION: 使用一个dummynode 创建一个新的链,将旧的节点插入到新链中即可,相当简单哦! /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { * val = x; * next = n…
Computer Science An Overview _J. Glenn Brookshear _11th Edition procedure Sort (List) N ← 2; while (the value of N does not exceed the length of List)do ( Select the Nth entry in List as the pivot entry; Move the pivot entry to a temporary location l…