给定一个正整数,输出它的补数.补数是对该数的二进制表示取反.注意:    给定的整数保证在32位带符号整数的范围内.    你可以假定二进制数不包含前导零位.示例 1:输入: 5输出: 2解释: 5的二进制表示为101(没有前导零位),其补数为010.所以你需要输出2. 示例 2:输入: 1输出: 0解释: 1的二进制表示为1(没有前导零位),其补数为0.所以你需要输出0.详见:https://leetcode.com/problems/number-complement/description…

给定一个正整数,输出它的补数.补数是对该数的二进制表示取反. 注意: 给定的整数保证在32位带符号整数的范围内. 你可以假定二进制数不包含前导零位. 示例 1: 输入: 5 输出: 2 解释: 5的二进制表示为101(没有前导零位),其补数为010.所以你需要输出2. 示例 2: 输入: 1 输出: 0 解释: 1的二进制表示为1(没有前导零位),其补数为0.所以你需要输出0. class Solution { public: int findComplement(int num) { int…

problem 476. Number Complement solution1: class Solution { public: int findComplement(int num) { //正数的补数是对应二进制各位翻转,且从非零高位开始. bool start = false; ; i>=; i--)//err. { <<i)) start = true; <<i); } return num; } }; 参考 1. Leetcode_476. Number Com…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. 給一個正整數,算出他的二補數 (2's complement). 二補數就是將該數字的二進制碼全部翻轉過來. Note: The given integer is guaranteed to fit within the range of…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

题目 Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading…

原题链接 https://leetcode.com/problems/number-complement/ 原题 Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range o…

题目要求 Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leadi…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

［抄题］: Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no lead…

题目: Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leadin…

476. Number Complement Easy Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. Yo…

476. 数字的补数 给定一个正整数,输出它的补数.补数是对该数的二进制表示取反. 示例 1: 输入: 5 输出: 2 解释: 5 的二进制表示为 101(没有前导零位),其补数为 010.所以你需要输出 2 . 示例 2: 输入: 1 输出: 0 解释: 1 的二进制表示为 1(没有前导零位),其补数为 0.所以你需要输出 0 . 注意: 给定的整数保证在 32 位带符号整数的范围内. 你可以假定二进制数不包含前导零位. 本题与 1009 https://leetcode-cn.com/pro…

数字的补数 给定一个正整数,输出它的补数.补数是对该数的二进制表示取反. 注意: 给定的整数保证在32位带符号整数的范围内. 你可以假定二进制数不包含前导零位. 示例 1: 输入: 5 输出: 2 解释: 5的二进制表示为101(没有前导零位),其补数为010.所以你需要输出2. 示例 2: 输入: 1 输出: 0 解释: 1的二进制表示为1(没有前导零位),其补数为0.所以你需要输出0. [思路] 如果我们能知道该数最高位的1所在的位置,就可以构造一个长度和该数据所占位置一样长的一个掩码mas…

---Number类型的细节,其包含的基本数字类型 ---Number基本数字类型之间的数值转换 ---Number上面的数学函数,有些可以直接调用,有些需要导入库 参见http://www.runoob.com/python/python-numbers.html 扩充下面的笔记…

LeetCode--Number Complement Question Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed in…

LeetCode_Easy_471:Number Complement 题目描述 Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signe…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 公众号:负雪明烛 本文关键词:Leetcode, 力扣,476, 补数,二进制,Python, C++, Java 目录 题目描述 解题方法 方法一:取反 方法二:异或 方法三:二进制字符串 总结 日期 题目地址:https://leetcode.com/problems/number-complement/ Difficulty: Easy 题目描述 Given a positive…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

给定一个正整数,输出它的补数.补数是对该数的二进制表示取反. 注意: 给定的整数保证在32位带符号整数的范围内. 你可以假定二进制数不包含前导零位. 示例 1: 输入: 5 输出: 2 解释: 5的二进制表示为101(没有前导零位),其补数为010.所以你需要输出2. 示例 2: 输入: 1 输出: 0 解释: 1的二进制表示为1(没有前导零位),其补数为0.所以你需要输出0. Java版 class Solution { public int findComplement(int num) {…

1.eamples Input: Output: Explanation: The binary representation of (no leading zero bits), and its complement . So you need to output . Input: Output: Explanation: The binary representation of (no leading zero bits), and its complement . So you need…

给定一个正整数,输出其补码. 思路:利用mask掩码进行异或, 利用 temp >> 1 大于0 来决定mask长度,求出的mask 为二进制 1 0 0 0 0类型,                                          mask -1为 0 1 1 1 1 ,可作为掩码,与num 进行异或. 例如: num = 5 二进制:    num:     0 1 0 1   mask :     1 0 0 0          mask-1:         1 1…

Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no leading ze…

Validate if a given string is numeric. Some examples:"0" => true" 0.1 " => true"abc" => false"1 a" => false"2e10" => true Note: It is intended for the problem statement to be ambiguous. You…

Python 支持三种不同的数字类型: 整型(Int) - 通常被称为是整型或整数,是正或负整数,不带小数点.Python3 整型是没有限制大小的,可以当作 Long 类型使用,所以 Python3 没有 Python2 的 Long 类型. 浮点型(float) - 浮点型由整数部分与小数部分组成,浮点型也可以使用科学计数法表示(2.5e2 = 2.5 x 102 = 250).之所以称为浮点数是因为按照科学记数法表示时,一个浮点数的小数点位置是可变的,比如,1.23x109和12.3x108…

We define the Perfect Number is a positive integer that is equal to the sum of all its positive divisors except itself. Now, given an integer n, write a function that returns true when it is a perfect number and false when it is not. Example: Input:…