package BitManipulation; //Question 461. Hamming Distance /* The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note: 0 ≤ x,…

题目描述 两个整数之间的汉明距离指的是这两个数字对应二进制位不同的位置的数目. 给出两个整数 x 和 y,计算它们之间的汉明距离. 注意: 0 ≤ x, y < 231. 示例: 输入: x = 1, y = 4 输出: 2 解释: 1 (0 0 0 1) 4 (0 1 0 0) ↑ ↑ 上面的箭头指出了对应二进制位不同的位置. 思路 思路一: 对两个数进行异或操作,位级表示不同的那一位为 1,统计有多少个 1 . 思路二: 使用 Integer.bitcount() 来统计 1 个的个数. 思…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Input: x = 1, y = 4 Output: 2 Explanation: 1   (0 0 0 1) 4   (0 1 0 0) ↑   ↑ 思路:就是求两数异或的二进制表示中有几个1. 如何求一个整数的二进制表示有几个一呢? while(x){x=x&(…

题目要求 The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. 题目分析及思路 题目给出两个整数,要求返回它们之间的Hamming distance.Hammi…

题目: The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 2^31. Example: Input: x = 1, y = 4 Output: 2 Explanati…

传送门 Description The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output:…

1. 题目链接:https://leetcode.com/problems/hamming-distance/description/ 2.思路 常规做法做完看到评论区一个非常有意思的做法.用了n&=(n-1),这个地方的意思是,将最右边的1变成0.比方说: 最简单的例子: 原数字: 101011 n-1: 101010 n&(n-1):101011&101010=101010 再看另一个例子: 原数字:10100 n-1: 10011 n&(n-1):10100&…

[Leetcode/Javascript] 461.Hamming Distance 题目 The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note: 0 ≤ x, y < 231. Exampl…