LeetCode Merge Two Sorted Lists
来源：互联网 发布：unity3d架构 编辑：程序博客网 时间：2024/05/22 06:27
链接: https://oj.leetcode.com/problems/merge-two-sorted-lists/
题目要去把两个有序的链表合并,并且合并后的链表依然有序.
/** * 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){ListNode *t1=l1; ListNode *t2=l2;ListNode *ans=new ListNode(0);//哨兵ListNode *ta=ans;while(t1&&t2){if(t1->val<t2->val){ta->next=t1;t1=t1->next;ta->next->next=NULL;}else{ta->next=t2;t2=t2->next;ta->next->next=NULL;}ta=ta->next;}if(t1==NULL&&t2!=NULL) ta->next=t2;if(t2==NULL&&t1!=NULL) ta->next=t1;ans=ans->next;return ans;}}; 0 0
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