[LeetCode]147. Insertion Sort List链表排序

【[LeetCode]147. Insertion Sort List链表排序】的更多相关文章

[LeetCode]147. Insertion Sort List链表排序

插入排序的基本思想把排好的放在一个新的变量中,每次拿出新的,排进去这个新的变量要有超前节点,因为第一个节点可能会有变动 public ListNode insertionSortList(ListNode head) { if (head==null||head.next==null) return head; ListNode dummy = new ListNode(0); ListNode h = head; ListNode next; ListNode temp; while (h…

[LeetCode] 147. Insertion Sort List 链表插入排序

Sort a linked list using insertion sort. A graphical example of insertion sort. The partial sorted list (black) initially contains only the first element in the list.With each iteration one element (red) is removed from the input data and inserted in…

LeetCode 147. Insertion Sort List 链表插入排序 C++/Java

Sort a linked list using insertion sort. A graphical example of insertion sort. The partial sorted list (black) initially contains only the first element in the list.With each iteration one element (red) is removed from the input data and inserted in…

[LeetCode] 147. Insertion Sort List 解题思路

Sort a linked list using insertion sort. 问题:实现单向链表的插入排序. 这是比较常规的一个算法题目. 从左往右扫列表,每次将指针的下一个元素插入前面已排好序的对应位置中. 需要注意的一定是,列表只能定位下一个元素,不能定位前一个元素,所有,每次插入位置的适合,都是对左右指针的下一个元素进行操作. void insertSort(ListNode* p1, ListNode* p2){ ListNode* next2 = p2->next; p2->ne…

Java for LeetCode 147 Insertion Sort List

Sort a linked list using insertion sort. 解题思路: 插入排序,JAVA实现如下: public ListNode insertionSortList(ListNode head) { if(head==null||head.next==null) return head; ListNode root=new ListNode(Integer.MIN_VALUE); root.next=head; head=head.next; root.next.nex…

leetcode 147. Insertion Sort List ----- java

Sort a linked list using insertion sort. 插入排序. /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ public class Solution { public ListNode insertionSortList(ListNode hea…

147 Insertion Sort List 链表插入排序

用插入排序对链表进行排序. 详见:https://leetcode.com/problems/insertion-sort-list/description/ Java实现: 链表的插入排序实现原理很简单,就是一个元素一个元素的从原链表中取出来,然后按顺序插入到新链表中,时间复杂度为O(n2),是一种效率并不是很高的算法,但是空间复杂度为O(1),以高时间复杂度换取了低空间复杂度. /** * Definition for singly-linked list. * public class L…