题目标签:Array 题目给了我们一组 从小到大的 integers,让我们平方数字 并且 也排序成 从小到达. 因为有负数在里面,平方后,负数在array的位置会变动. 可以设left 和 right pointers,从两边遍历,比较一下两个平方后的数字,把大的那个 放入新建的array的末尾. 具体看code. Java Solution: Runtime beats 100.00% 完成日期:02/03/2019 关键点:two pointers class Solution { pub…

网址:https://leetcode.com/problems/squares-of-a-sorted-array/ 双指针法 把左端的元素和右端的元素比较后挑出绝对值大的,将其平方放入ans中,并且将指针往中间移动 不断循环上述过程,直至两指针重合.注意处理重合位置 最后将 ans 通过 reverse 反转一下就可以了 class Solution { public: vector<int> sortedSquares(vector<int>& A) { , j =…

problem 977. Squares of a Sorted Array solution: class Solution { public: vector<int> sortedSquares(vector<int>& A) { for(auto &a:A) a *=a; sort(A.begin(), A.end()); return A; } }; 参考1. Leetcode_easy_977. Squares of a Sorted Array; 完…

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 A = […

Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element that appears only once. Example 1: Input: [1,1,2,3,3,4,4,8,8] Output: 2 Example 2: Input: [3,3,7,7,…

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.…

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.…

给定一个只包含整数的有序数组,每个元素都会出现两次,唯有一个数只会出现一次,找出这个数.示例 1:输入: [1,1,2,3,3,4,4,8,8]输出: 2 示例 2:输入: [3,3,7,7,10,11,11]输出: 10注意: 您的方案应该在 O(log n)时间复杂度和 O(1)空间复杂度中运行.详见:https://leetcode.com/problems/single-element-in-a-sorted-array/description/ C++: 方法一: class Solu…

题目要求 Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing order. 题目分析及思路 题目给出一个整数数组,已经按照非减顺序排列好了.要求返回一个数组,包含的元素是已知数组元素的平方,且按照非减顺序排列.可以使用列表的sort()函数进行排序. python代码​ cl…

题目描述: Given an array of integers A sorted in non-decreasing order, return an array of the squares of each number, also in sorted non-decreasing order. Example : Input: [-,-,,,] Output: [,,,,] Example : Input: [-,-,,,] Output: [,,,,] Note: <= A.length…