题目 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. 分析 该题目与LeetCode 83题目类似,都是删除链表中重复元素的题目. 该题目要求只保存不重复的结点! 详…

题目 Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? For example, Given sorted array nums = [1,1,1,2,2,3], Your function should return length = 5, with the first five elements of nums being 1, 1, 2, 2 and 3. It doe…

题目: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input array…

题目 Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input array n…

题目 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. 分析 删除链表中反复元素结点. 该题目本质非常easy.仅仅需一次遍历.须要注意的是.要释放删除的结点空间. A…

1.题目 26. Remove Duplicates from Sorted Array--Easy Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifyi…

题目 There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 分析 给定两个有序序列,要求两个序列综合后的中位数.关键:算法复杂度T(n)=O(log(m+n)) 该问题的关键就在于复杂度的限制,有了这个限制,就…

1. Remove Duplicates from Sorted List 题目链接 题目要求: 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. 这道题不难.具体程序…

83. Remove Duplicates from Sorted List Total Accepted: 94387 Total Submissions: 264227 Difficulty: Easy 题目意思:如今有一个已经排好顺序的链表,删除全部反复的节点.使每一个节点都仅仅出现一次! Given a sorted linked list, delete all duplicates such that each element appear only once. For exampl…

给定一个排序链表,删除所有含有重复数字的节点,只保留原始链表中 没有重复出现 的数字. 示例 1: 输入: 1->2->3->3->4->4->5 输出: 1->2->5 示例 2: 输入: 1->1->1->2->3 输出: 2->3 思路:这个题目和上一个不太一样,因为它不留下重复的元素.我一开始的思路是,先遍历链表,将每个值的个数计算并保存下,再次遍历链表,并将只出现的一次的节点留下来,但是这样遍历两次的思想显然不明智,而…

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. 题目要求: 给一有序链表,删除重复的结点,使得每个元素只出现一次. 解题思路: 1.从头到尾遍历链表,如果前后两个结点相同…

https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/ 题目: Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example,Given 1->2->3->3->4->4->…

LeetCode第26题 Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1)…

problem: Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input ar…

国外的表达思维跟咱们有很大差别,做这道题的时候很明显.简单说本题就是让你把有序数组中的重复项给换成正常有序的.比如 1 2 2 3换成 1 2 3 3,根本不需要考虑重复的怎么办,怎么删除重复项等等.拿起键盘干就行了.然后返回有序项的下标就可以. Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not…

Description Given a sorted array nums, remove the duplicates in-place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) e…

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. /** * Definition for singly-linked list. * struct ListNode {…

#-*- coding: UTF-8 -*-class Solution(object):    def removeDuplicates(self, nums):        """        :type nums: List[int]        :rtype: int        """        if len(nums)<=1:return len(nums)        pre=0;next=1        wh…

题目 Remove all elements from a linked list of integers that have value val. Example Given: 1 –> 2 –> 6 –> 3 –> 4 –> 5 –> 6, val = 6 Return: 1 –> 2 –> 3 –> 4 –> 5 Credits: Special thanks to @mithmatt for adding this problem and…

题目 Given an array and a value, remove all instances of that value in place and return the new length. The order of elements can be changed. It doesn't matter what you leave beyond the new length. 分析 这是一道很简单的题目,对数组进行一次遍历,删除与给定值相等的关键字,返回新长度即可. AC代码 cla…

题目 Given a linked list, remove the nth node from the end of list and return its head. For example, Given linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Giv…

题目 Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return its index, otherwise return -1. You may assume no dup…

#-*- coding: UTF-8 -*- # Definition for singly-linked list.# class ListNode(object):#     def __init__(self, x):#         self.val = x#         self.next = Noneclass Solution(object):    def deleteDuplicates(self, head):        if head==None or head.…

Medium! 题目描述: 给定一个排序链表,删除所有含有重复数字的节点,只保留原始链表中 没有重复出现 的数字. 示例 1: 输入: 1->2->3->3->4->4->5 输出: 1->2->5 示例 2: 输入: 1->1->1->2->3 输出: 2->3 解题思路: 和之前那道 (http://www.cnblogs.com/grandyang/p/4066453.html) 不同的地方是这里要删掉所有的重复项,由于链…

描述 Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? For example, Given sorted array A = [1,1,1,2,2,3], Your function should return length = 5, and A is now [1,1,2,2,3] 解法一 要解该题,只需要在上一题(leetcode解题报告(1):Remove Dupli…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/description/ 题目描述 Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers…

Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. Example 1: Input: 1->2->3->3->4->4->5 Output: 1->2->5 Example 2: Input: 1->1->1->2->3 Outpu…

82. 删除排序链表中的重复元素 II 82. Remove Duplicates from Sorted List II 题目描述 给定一个排序链表,删除所有含有重复数字的节点,只保留原始链表中没有重复出现的数字. LeetCode82. Remove Duplicates from Sorted List II中等 示例 1: 输入: 1->2->3->3->4->4->5 输出: 1->2->5 示例 2: 输入: 1->1->1->…

一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example, Given 1->2->3-&…

203题是在链表中删除一个固定的值,83题是在链表中删除重复的数值,但要保留一个:82也是删除重复的数值,但重复的都删除,不保留. 比如[1.2.2.3],83题要求的结果是[1.2.3],82题要求的结果是[1,3]. 这种题用递归去做比较方便思考,特别是这种重复的数值.递归就是只遍历当前的节点的情况,之前的不用管,之后的以当前节点为出发点思考问题. 203. Remove Linked List Elements class Solution { public: ListNode* remo…