1.题目描述 2.问题分析 将数组中的元素 A[i] 放到 A[ A[i] - 1] 的位置.然后遍历一边数组,如果不满足 A[i] == i+1,则将A[i]添加到 结果中. 3.代码 vector<int> findDuplicates(vector<int>& nums) { vector<int> result ; ; i < nums.size() ; ++i ){ ]){ std::swap( nums[i] , nums[ nums[i] -…

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…

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)…

题目来源: https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/ 题意分析: 给出一个排好序的数组,根据这个数据形成一个高度平衡的搜索二叉树. 题目思路: 将中位数为根节点,中位数左边为左子树,右边为右子树. 代码(python): # Definition for a binary tree node. # class TreeNode(object): # def __init__(self, x)…

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…

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…

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…

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 n…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 字典 原地变负 日期 题目地址:https://leetcode.com/problems/find-all-duplicates-in-an-array/description/ 题目描述 Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appe…