https://leetcode.com/problems/subsets/discuss/27288/My-solution-using-bit-manipulation 题解的解释参考:https://www.mathsisfun.com/sets/power-set.html(有点像状态压缩的感觉) bit manipulation 【136】Single Number(2018年11月4日)(剑指offer上有个变种题,有两个数只出现了一次,求出出现一次的这两个数...
LeetCode——371. 两整数之和[Sum of Two Integers][中等]——分析及代码[C++] 一、题目 二、分析及代码 1. 位运算 (1)思路 (2)代码 (3)结果 三、其他 一、题目 给你两个整数 a 和 b ,不使用 运算符 + 和 - ,计算并返回两整数之和。 示例 1: 示例 2: 提示...猜...
Bit Manipulation # 异或的特性。第 136 题,第 268 题,第 389 题,第 421 题, x ^ 0 = x x ^ 11111……1111 = ~x x ^ (~x) = 11111……1111 x ^ x = 0 a ^ b = c => a ^ c = b => b ^ c = a (交换律) a ^ b ^ c = a ^ (b ^ c) = (a ^ b)^ c (结合律...
String t is generated by random shuffling string s and then add one more letter at a random position. Find the letter that was added in t. */publicclassLc389{/* * 思路:置换 * * 由于t比仅多一位,则将t的最后为假定成不同的字符,然后t和s做差. */publicstaticcharfindTheDifference(String ...
c c-plus-plus tree algorithm datastructures leetcode cpp bit-manipulation data-structures string-manipulation interview-practice leetcode-solutions interview-questions Updated Jan 8, 2021 C++ teivah / algodeck Star 4.1k Code Issues Pull requests An Open-Source Collection of 200+ Algorithmic Flash...
hashing tree linked-list stack queue graph maps strings backtracking bit-manipulation arrays maths dynamic-programming greedy-algorithms binary-search heaps interviewbit two-pointers Updated Feb 11, 2025 C++ kaidul / LeetCode_problems_solution Star 91 Code Issues Pull requests Solutions to all pr...
bit manipulation 位运算: “>>” 右移,高位补符号位,右移1位表示除2 “>>>” 无符号右移,高位补0 “<<” 左移,左移1为表示乘2 | 或运算: 比较bit,有一个是1,结果是1。 应用:点亮某bit设置其为1,void set(int) & 与运算: 比较bit,当都是1时,结果是1。
(Notes: "馃摉" means you need to subscribe to [LeetCode premium membership](https://leetcode.com/subscribe/) for the access to premium questions.) ## Algorithms * [Bit Manipulation](https://github.com/kamyu104/LeetCode#bit-manipulation) * [Array](https://github.com/kamyu104/LeetCode#...
Leetcode Tags(13)Bit Manipulation 一、477.汉明距离总和 输入:4,14,2输出:6解释: 在二进制表示中,4表示为0100,14表示为1110,2表示为0010。(这样表示是为了体现后四位之间关系) HammingDistance(4,14) + HammingDistance(4,2) + HammingDistance(14,2) =2+2+2=6....
return 964176192 represented in binary as 00111001011110000010100101000000. Follow up: If this function is called many times, how would you optimize it? 这个题目就是利用Bit Manipulation, 依次将每位n的最后一位移到ans的前面, T: O(1) Code