【LeetCode 80，不使用外部空间的情况下对有序数组去重】的更多相关文章

LeetCode 80，不使用外部空间的情况下对有序数组去重

本文始发于个人公众号:TechFlow,原创不易,求个关注 今天是LeetCode专题的第49篇文章,我们一起来看LeetCode的第80题,有序数组去重II(Remove Duplicates from Sorted Array II). 这题的官方难度是Medium,通过率是43.3%,点赞1104,反对690.这题的通过率有一点点高,然后点赞比也不是很高.说明这题偏容易,并且大家的评价偏低.也的确如此,我个人觉得,大家评价不好的主要原因还是这题偏容易了一些. 题面 其实从题目的标题当中我们…

[leetcode]80. Remove Duplicates from Sorted Array II有序数组去重(单个元素可出现两次)

Given a sorted array nums, remove the duplicates in-place such that duplicates appeared at most twice 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) extra mem…

[LeetCode] Find Minimum in Rotated Sorted Array II 寻找旋转有序数组的最小值之二

Follow up for "Find Minimum in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might be…

[leetcode]26. Remove Duplicates from Sorted Array有序数组去重(单个元素只出现一次)

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) extra memory.…

Leetcode之二分法专题-167. 两数之和 II - 输入有序数组（Two Sum II - Input array is sorted）

Leetcode之二分法专题-167. 两数之和 II - 输入有序数组(Two Sum II - Input array is sorted) 给定一个已按照升序排列 的有序数组,找到两个数使得它们相加之和等于目标数. 函数应该返回这两个下标值 index1 和 index2,其中 index1 必须小于 index2. 说明: 返回的下标值(index1 和 index2)不是从零开始的. 你可以假设每个输入只对应唯一的答案,而且你不可以重复使用相同的元素. 示例: 输入: numbers…

[LeetCode] 153. Find Minimum in Rotated Sorted Array 寻找旋转有序数组的最小值

Suppose an array sorted in ascending order 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]). Find the minimum element. You may assume no duplicate exists in the array. Example 1: Input: [3,4,5…

[LeetCode] 81. Search in Rotated Sorted Array II 在旋转有序数组中搜索 II

Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4…

LeetCode 108. Convert Sorted Array to Binary Search Tree （有序数组转化为二叉搜索树）

Given an array where elements are sorted in ascending order, convert it to a height balanced BST. 题目标签:Tree 这道题目给了我们一个有序数组,从小到大.让我们把这个数组转化为height balanced BST. 首先来看一下什么是binary search tree: 每一个点的left < 节点 < right, 换一句话说,每一个点的值要大于左边的,小于右边的. 那么什么是heigh…

[leetcode]81. Search in Rotated Sorted Array II旋转过有序数组里找目标值II(有重)

This is a follow up problem to Search in Rotated Sorted Array, where nums may contain duplicates. 思路 该题是[leetcode]33. Search in Rotated Sorted Array旋转过有序数组里找目标值 的followup 唯一区别是加了line24-26的else语句来skip duplicates 代码 class Solution { public boolean sear…

LeetCode 81 Search in Rotated Sorted Array II（循环有序数组中的查找问题）

题目链接:https://leetcode.com/problems/search-in-rotated-sorted-array-ii/#/description   姊妹篇:http://www.cnblogs.com/zpfbuaa/p/6531773.html   给出一个循环有序数组,与其姊妹篇不同的是其中允许元素出现重复多次.给定一个数字target,查找该数字是否存在于该数组中.   姊妹篇中的解决方法是使用折半查找,通过判断nums[left]和nums[mid]以及nums[r…