公众号:爱写bug(ID:icodebugs) 翻转字符串里的单词 Given an input string, reverse the string word by word. 示例 1: 输入: "the sky is blue" 输出: "blue is sky the" 示例 2: 输入: " hello world! " 输出: "world! hello" 解释: 输入字符串可以在前面或者后面包含多余的空格,但是反…
Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string. If there are less than k characters left, reverse all of them. If there are less than 2k but greater than or eq…
［抄题］: Given an input string, reverse the string word by word. Example: Input: "the sky is blue", Output: "blue is sky the". [暴力解法]: 时间分析: 空间分析: [优化后]: 时间分析: 空间分析: ［奇葩输出条件］: ［奇葩corner case］: ［思维问题］: 打碎成数组后再添加,居然有看不懂的bug. public class So…
Write a function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. You may assume all the…
