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【算法-简单】合并两个有序链表 #87

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AwesomeDevin opened this issue May 22, 2023 · 0 comments
Open

【算法-简单】合并两个有序链表 #87

AwesomeDevin opened this issue May 22, 2023 · 0 comments

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@AwesomeDevin
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将两个升序链表合并为一个新的 升序 链表并返回。新链表是通过拼接给定的两个链表的所有节点组成的。

/**
 * Definition for singly-linked list.
 * function ListNode(val, next) {
 *     this.val = (val===undefined ? 0 : val)
 *     this.next = (next===undefined ? null : next)
 * }
 */
/**
 * @param {ListNode} list1
 * @param {ListNode} list2
 * @return {ListNode}
 */
var mergeTwoLists = function(list1, list2) {
    if(!list1) return list2
    if(!list2) return list1

    if(list1.val < list2.val){
        list1.next = mergeTwoLists(list1.next, list2)
        return list1
    }else{
        list2.next = mergeTwoLists(list1, list2.next)
        return list2
    }
}
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