Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. click to show clarification. Cl…
统计字符串中的单词个数,这里的单词指的是连续的不是空格的字符. 请注意,你可以假定字符串里不包括任何不可打印的字符. 示例: 输入: "Hello, my name is John" 输出: 5 题目描述比较不清楚,这里只要是用空格隔开的一律当作字符,包括非字母.使用JAVA自带库函数解决问题.记得忽略空格情况 当然这里使用了较大的内存保存分割后的ss字符串数组,如果对内存比较敏感的可以对字符串手动以空格划分.(这里空格可能多个,所以可以使用正则表达式较为方便去匹配) 代码如下: cl…
公众号:爱写bug(ID:icodebugs) 给定一个字符串,你需要反转字符串中每个单词的字符顺序,同时仍保留空格和单词的初始顺序. Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. 示例 1: 输入: "Let's take LeetCode co…
Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Update (2015-02-12):For C programmers: Try to solve it in-place in O(1) space. Clarification: What constitutes a…