190. 颠倒二进制位 颠倒给定的 32 位无符号整数的二进制位. 示例 1: 输入: 00000010100101000001111010011100 输出: 00111001011110000010100101000000 解释: 输入的二进制串 00000010100101000001111010011100 表示无符号整数 43261596, 因此返回 964176192,其二进制表示形式为 00111001011110000010100101000000. 示例 2: 输入:11111…

颠倒给定的 32 位无符号整数的二进制位. 示例: 输入: 43261596 输出: 964176192 解释: 43261596 的二进制表示形式为 00000010100101000001111010011100 , 返回 964176192,其二进制表示形式为 00111001011110000010100101000000 . 思路 用python内置的bin()函数转为为二进制数,并用zfill()方法补足到32位,最后将字符串反转,转换为整型即可 代码 class Solution:…

颠倒给定的 32 位无符号整数的二进制位. 示例 1: 输入: 00000010100101000001111010011100输出: 00111001011110000010100101000000解释: 输入的二进制串 00000010100101000001111010011100 表示无符号整数 43261596, 因此返回 964176192,其二进制表示形式为 00111001011110000010100101000000.示例 2: 输入:11111111111111111111…

颠倒给定的 32 位无符号整数的二进制位. 示例 1: 输入: 00000010100101000001111010011100 输出: 00111001011110000010100101000000 解释: 输入的二进制串 00000010100101000001111010011100 表示无符号整数 43261596, 因此返回 964176192,其二进制表示形式为 00111001011110000010100101000000. 示例 2: 输入:11111111111111111…

Reverse bits of a given 32 bits unsigned integer. For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000). JAVA实现如下: public int revers…

[python]Leetcode每日一题-颠倒二进制位 [题目描述] 颠倒给定的 32 位无符号整数的二进制位. 示例1: 输入: 00000010100101000001111010011100 输出: 00111001011110000010100101000000 解释: 输入的二进制串 00000010100101000001111010011100 表示无符号整数 43261596, 因此返回 964176192,其二进制表示形式为 00111001011110000010100101…

Find all possible combinations of k numbers that add up to a number n, given that only numbers from 1 to 9 can be used and each combination should be a unique set of numbers. Ensure that numbers within the set are sorted in ascending order. Example 1…

Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation. For example: Given "aacecaaa", return "aaacecaaa&qu…

Given a 2D board and a list of words from the dictionary, find all words in the board. Each word must be constructed from letters of sequentially adjacent cell, where "adjacent" cells are those horizontally or vertically neighboring. The same le…

Design a data structure that supports the following two operations: void addWord(word)bool search(word) search(word) can search a literal word or a regular expression string containing only letters a-z or .. A . means it can represent any one letter.…