Given theheadof a linked list, find all the values that appear more than once in the list and delete the nodes that have any of those values. Returnthe linked list after the deletions. Example 1: Input: head = [1,2,3,2] Output: [1,3] Explanation: 2 appears twice in the linked ...
Given1->2->3->3->4->4->5, return1->2->5. Given1->1->1->2->3, return2->3. Solution 判断当前节点和下一个节点是否相等,同时在开头添加了一个节点,因为开始的节点可能就是重复的,会被删除。 Code /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode...
Given1->1->1->2->3, return2->3. 非经常规的解法。为去除头节点的特殊性,须要用到虚拟头结点技术。 ListNode*deleteDuplicates(ListNode*head){if(!head)returnNULL;ListNode*dummyHead=newListNode(0);dummyHead->next=head;ListNode*prev=dummyHead,*curr=head->next;intcurVal=head->val;while(curr){i...
Given theheadof a linked list, find all the values that appear more than once in the list and delete the nodes that have any of those values. Returnthe linked list after the deletions. Example 1: Input: head = [1,2,3,2] Output: [1,3] Explanation: 2 appears twice in the linked ...
Can you solve this real interview question? Remove Duplicates from Sorted List II - Given the head of a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. Return the linked list sorted
Can you solve this real interview question? Remove Linked List Elements - Given the head of a linked list and an integer val, remove all the nodes of the linked list that has Node.val == val, and return the new head. Example 1: [https://assets.leetc
事实上很简单的,按照数据结构书上那种就行了: https://leetcode.com/problems/remove-duplicates-from-sorted-list/solution/
https://leetcode.com/problems/remove-linked-list-elements 和常规的删除一个node的情况不同的是,它要求删除所有val为指定值的node。 这道题要注意一个点: head node 的值是指定值,和中间node的值为指定值,在操作上不一样。比较好的办法是,在head前创建一个dummy node,那么这两种情况的操作就一样,最后返回...
83. Remove Duplicates from Sorted List Given a sorted linked list, delete all duplicates such that each element appear onlyonce. For example, Given1->1->2, return1->2. Given1->1->2->3->3, return1->2->3. 题目大意: 去除有序链表内部相同元素,即相同元素只保留一个。
【摘要】 这是一道关于链表问题的LeetCode题目,希望对您有所帮助。 题目概述: Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2, return 1->2. Given 1->1->2->3->3, return 1->2->3. ...