需要遍历 list2 中的全部 O(|list2|) 个结点 空间复杂度:O(1) 只需要维护常数个额外变量 代码(Python3) # Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def mergeTwoLists(self, list...
* Definition for a singly-linked list. * class ListNode { * public $val = 0; * public $next = null; * function __construct($val = 0, $next = null) { * $this->val = $val; * $this->next = $next; * } * } */classSolution{/** *@paramListNode $list1 *@paramListNode $l...
* Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode* mergeTwoLists(ListNode* l1, ListNode* l2) { if(l1 == NULL) return l2; ...
next); return list2; } } // Definition for singly-linked list. public class ListNode { int val; ListNode next; ListNode() { } ListNode(int val) { this.val = val; } ListNode(int val, ListNode next) { this.val = val; this.next = next; } } 官方版 public ListNode mergeTwoLists...
javascript /** * Definition for singly-linked list. * function ListNode(val) { * this.val = val; * this.next = null; * } *//** * @param {ListNode} l1 * @param {ListNode} l2 * @return {ListNode} */varmergeTwoLists=function(l1,l2){varhead,tail;if(l1===null&&l2===null)ret...
l1.next=self.mergeTwoLists(l1.next,l2)returnl1orl2 以上两个方法使用了迭代的思想,LeetCode处理linked list更常用的方法是指针。在新list前加入一个dummy head。然后使用一个指针来修改list。 # Definition for singly-linked list.# class ListNode(object):# def __init__(self, x):# self.val = x#...
合并两个有序链表 /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode *mergeTwoLists(ListNode *l1, ListNode *l2) { ...
Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity. 这道题本来想用比较直观的方法,但超时了。具体程序如下: 1/**2* Definition for singly-linked list.3* struct ListNode {4* int val;5* ListNode *next;6* ListNode(int x) : val(x), next(NULL)...
In this program, we have defined two functions,merge_sortandmerge. In the merge_sort function, we divide the array into two equal arrays and call merge function on each of these sub arrays. In merge function, we do the actual sorting on these sub arrays and then merge them into one com...
Write a function that takes two lists, each of which is sorted in increasing order, and merges the two into a single list in increasing order, and returns it.