Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. Example 1: Input: [3,0,1] Output: 2 Example 2: Input: [9,6,4,2,3,5,7,0,1] Output: 8 Note:Your algorithm should run in linear runtime…

268. Missing Number Total Accepted: 31740 Total Submissions: 83547 Difficulty: Medium Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example, Given nums = [0, 1, 3] return 2.…

Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the…

Given two integers L and R, find the count of numbers in the range [L, R](inclusive) having a prime number of set bits in their binary representation. (Recall that the number of set bits an integer has is the number of 1s present when written in bina…

Description Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. Example 1: Input: [,,] Output: Example 2: Input: [,,,,,,,,] Output: Note:Your algorithm should run in linear runtime com…

Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values. Example 1: Input: 5 Output: True Explanation: The binary representation of 5 is: 101 Example 2: Input: 7 Output: False Ex…

Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? Example 1: Input: [2,2,1] Output:…

Missing Number Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example,Given nums = [0, 1, 3] return 2. Note:Your algorithm should run in linear runtime complexity. Could you i…

Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. 原题地址: Missing Number 难度: Easy 题意: 存在一个长度为n的数组,其中数值包括在[0, n]之中,返回缺少的那个数 思路1: (1)类似217. Contains Duplicate@python,采用正负计数方式,将数组中的值与数组索引…

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 求和 异或 日期 题目地址:https://leetcode.com/problems/missing-number/#/description 题目描述 Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is miss…