题解 | #合并两个排序的链表#
合并两个排序的链表
https://www.nowcoder.com/practice/d8b6b4358f774294a89de2a6ac4d9337
Java版本,用递归
import java.util.*; /* public class ListNode { int val; ListNode next = null; ListNode(int val) { this.val = val; } }*/ public class Solution { public ListNode Merge(ListNode list1,ListNode list2) { if (list1 == null) return list2; if (list2 == null) return list1; if (list1.val <= list2.val){ list1.next = Merge(list1.next, list2); return list1; } else{ list2.next = Merge(list1, list2.next); return list2; } } }