Write a function that takes an unsigned integer and return the number of '1' bits it has (also known as theHamming weight). 输入是一个无符号整数,返回其二进制表达式中数字位数为 ‘1’ 的个数。 回到顶部 解析 消除最后的1 观察一下 n 与 n-1 这两个数的二进制表示:对于 n-1 这个数的二进...
LeetCode题解之Number of 1 Bits 1、题目描述 2.问题分析 使用C++ 标准库的 bitset 类,将整数转换为 二进制,然后将二进制表示转换为字符串,统计字符串中 1 的个数即可。 3、代码 1inthammingWeight(uint32_t n) {2bitset<32>b(n);3stringb_s =b.to_string() ;45intcount_one =0;6for(string::...
题目链接: Number of 1 Bits : leetcode.com/problems/n 位1的个数: leetcode.cn/problems/nu LeetCode 日更第 132 天,感谢阅读至此的你 欢迎点赞、收藏鼓励支持小满 发布于 2022-05-28 10:41 力扣(LeetCode) 算法与数据结构 Python 赞同添加评论 分享喜欢收藏申请转载 ...
Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight). For example, the 32-bit integer ’11' has binary representation 00000000000000000000000000001011, so the function should return 3. 移位法 复杂度 时间O(1) 空间 O(1...
[LeetCode]Number of 1 Bits Question Write a function that takes an unsigned integer and returns the number of ’1’ bits it has (also known as the Hamming weight). For example, the 32-bit integer ’11’ has binary representation 00000000000000000000000000001011, so the function...
Write a function that takes an unsigned integer and returns the number of ’1’ bits it has (also known as the Hamming weight). For example, the 32-bit integer ’11’ has binary representation 00000000000000000000000000001011, so the function should return 3. ...
Sort Integers by the Number of 1 Bits 快排,注意比较的方法,因为 bitCount 相同时也要排序。 使用我自己写的 bitCount方法,是 10ms,使用 Integer.bitCount方法是 3ms。 Integer.bitCount...[LeetCode] 1356. 根据数字二进制下 1 的数目排序 1 题目描述 给你一个整数数组 arr 。请你将数组中的元素按照...
Number of 1 Bits 在线地址: leetcode-cn.com/problem 题目描述 编写一个函数,输入是一个无符号整数,返回其二进制表达式中数字位数为 ‘1’ 的个数(也被称为汉明重量)。 示例: 输入:00000000000000000000000000001011 输出:3 解释:输入的二进制串 00000000000000000000000000001011 中,共有三位为 '1'。 示例2: ...
[LeetCode] Number of 1 Bits 简介:Write a function that takes an unsigned integer and returns the number of ’1’ bits it has (also known as the Hamming weight).For example, the 32-bit integer ’11’ has binary representation Write a function that takes an unsigned integer and returns ...
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