905. Sort Array By Parity (Easy)# Given an array A of non-negative integers, return an array consisting of all the even elements of A, followed by all the odd elements of A. You may return any answer array that satisfies this condition. Example 1: In…

problem 961. N-Repeated Element in Size 2N Array solution: class Solution { public: int repeatedNTimes(vector<int>& A) { unordered_map<int, int> amap; for(auto a:A) { amap[a]++; } , max_val; for(auto a:amap) { if(a.second>max_num) { max…

In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,2,5,3,2] Output: 2 Example 3: Input: [5,1…

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 日期 题目地址:https://leetcode.com/problems/n-repeated-element-in-size-2n-array/ 题目描述 In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is…

In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,2,5,3,2] Output: 2 Example 3: Input: [5,1…

题目要求 In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. 题目分析及思路 题目给出一个长度为2N的数组,其中有N+1个不同元素,有一个元素重复了N次,要求返回该重复N次的元素.可以随机从数组中获得两个元素,如果这两个元素相同,则该元素就是题目所要返回的…

题目如下: In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,2,5,3,2] Output: 2 Example 3: Input…

In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,2,5,3,2] Output: 2 Example 3: Input: [5,1…

In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N times. Example 1: Input: [1,2,3,3] Output: 3 Example 2: Input: [2,1,2,5,3,2] Output: 2 Example 3: Input: [5,1…

Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j].  The width of such a ramp is j - i. Find the maximum width of a ramp in A.  If one doesn't exist, return 0. Example 1: Input: [6,0,8,2,1,5] Output: 4 Explanatio…