两个升序链表的合并 Merge Two Sorted Lists 【 leetcode】

【两个升序链表的合并 Merge Two Sorted Lists 【 leetcode】】的更多相关文章

两个升序链表的合并 Merge Two Sorted Lists 【 leetcode】

class Solution {public: ListNode* mergeTwoLists(ListNode* l1, ListNode* l2) { ListNode *p; ListNode *p1=p; while(l1!=NULL && l2!=NULL){ if((l1->val)<(l2->val)){ p->next=l1; p=p->next; l1=l1-&…

Merge Two Sorted Lists - LeetCode

目录题目链接注意点解法小结题目链接 Merge Two Sorted Lists - LeetCode 注意点两个链表长度可能不一致解法解法一:先比较两个链表长度一致的部分,多余的部分直接加进答案链表即可.时间复杂度为O(n) /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL)…

23. Merge k Sorted Lists - LeetCode

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链表经典题Merge Two Sorted Lists

Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Hide Tags Linked List /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *ne…

Merge Two Sorted Lists—LeetCode

Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. https://leetcode.com/problems/merge-two-sorted-lists/ 题意就是合并两个有序的链表,说实话,这个题我一开始还真有点轻视,不就是merge sort里一步么,但是真写…

Merge k Sorted Lists Leetcode Java

Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 使用分治法,时间复杂度是nlogk, n是所有元素个数的总和,k是k个lists, 这种方法和依次merge每一个list的方法的时间复杂度不同. 如果第一个list有n-k个元素,其余每个list是1个元素, 两两分治合并,每个元素参与了logk次合并, 如果是依次合并(第一个和第二个合并,之后的结…

Merge Two Sorted Lists leetcode java

题目: Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. 题解: 这道题是链表操作题,题解方法很直观. 首先,进行边界条件判断,如果任一一个表是空表,就返回另外一个表. 然后,对于新表选取第一个node,选择两个表表头最小的那个作为新表表头,指针后挪. 然后同时遍历…