时间复杂度O(nlogn) 不考虑递归栈空间的话空间复杂度是O(1) 首先用快慢指针的方法找到链表中间节点,然后递归的对两个子链表排序,把两个排好序的子链表合并成一条有序的链表。归并排序应该算是链表排序最佳的选择了,保证了最好和最坏时间复杂度都是nlogn,而且它在数组排序中广受诟病的空间复杂度在链表排序中也...
Sort a linked list in O(n log n) time using constant space complexity. 2.翻译 1 在固定的空间复杂度中使用O(nlog n)的时间复杂度进行链表的排序。 3.思路分析 提起排序,我们脑海中会迅速出现各种排序算法:冒泡排序、快速排序、简单排序、堆排序、直接插入排序、希尔排序(递减增量排序)、直接选择排序、堆...
first.next=null;//这里容易出现问题,提前将后置节点归null ListNode head1=sortList(head); ListNode head2=sortList(tmp);returnmergeList(head1, head2); }publicstaticvoidmain(String[] args){ LinkedSort linkedSort=newLinkedSort(); ListNode head1=newListNode(9); head1.next=newListNode(3); head1...
148. Sort List Sort a linked list in O(n log n) time using constant space complexity. Example 1: Input: 4->2->1->3 Output: 1->2->3->4 Example 2: Input: -1->5->3->4->0 Output: -1->0->3->4->5 思路: 题目意思很明确,给一个链表排序,排序的方式有很多,这里写一下归...
leetcode 148. Sort List 链表归并排序 Sort a linked list in O(n log n) time using constant space complexity. 本题就是考察的是链表的归并排序。 代码如下: /*class ListNode { int val; ListNode next; ListNode(int x) { val = x; }
LeetCode的代码: AI检测代码解析 1 /** 2 * Definition for singly-linked list. 3 * struct ListNode { 4 * int val; 5 * ListNode *next; 6 * ListNode(int x) : val(x), next(NULL) {} 7 * }; 8 */ 9 class Solution { 10 public: ...
Data structure is backed by a hash table to store values and doubly-linked list to store insertion ordering. Implements Set, ReverseIteratorWithIndex, EnumerableWithIndex, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/sets/linkedhashset" func main() ...
* Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode* insertionSortList(ListNode* head) { ListNode*...
LinkedHashMap A map that preserves insertion-order. It is backed by a hash table to store values and doubly-linked list to store ordering. Implements Map, IteratorWithKey, EnumerableWithKey, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/maps/linked...
trunk segment (e.g. generaEchinoderesandDracoderes), landmarks were placed at the base of the two placids that are closest to the midventral placid (Fig.5B). For species with a single, ring-like cuticular plate also at the second trunk segment (e.g. genusEchinoderes), landmarks we...