文章 2022-02-16 来自:开发者社区

leetCode 151. Reverse Words in a String 字符串反转 | Medium

151. Reverse Words in a String Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 题目大意: 输入一个字符串,将单词序列反转。 思路1: 采用一个vector,来存放...

文章 2022-02-16 来自:开发者社区

LeetCode - 25. Reverse Nodes in k-Group

 25. Reverse Nodes in k-Group Problem's Link  ---------------------------------------------------------------------------- Mean:  给定一个链表和一个k值,将链表按照k个结点为一组,组内翻转. analyse: 继续抖机灵! ...

文章 2022-02-16 来自:开发者社区

leetcode:Reverse Words in a String【Python版】

1 class Solution: 2 # @param s, a string 3 # @return a string 4 def reverseWords(self, s): 5 ss = s.split(" ") 6 ss = filter(lambda x:x!="",ss) 7 l = len(ss)...

文章 2022-02-16 来自:开发者社区

[LeetCode] Evaluate Reverse Polish Notation 计算逆波兰表达式

Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples:...

文章 2022-02-16 来自:开发者社区

[LeetCode] Reverse Nodes in k-Group 每k个一组翻转链表

Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. If the number of nodes is not a multiple of k then left-out nodes in the end shoul...

文章 2022-02-16 来自:开发者社区

[LeetCode] Reverse Words in a String 翻转字符串中的单词

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 i...

文章 2022-02-16 来自:开发者社区

[LeetCode] Reverse Words in a String II 翻转字符串中的单词之二

Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters. The input string does not contain leading or trailing spaces and the words are always ....

文章 2022-02-16 来自:开发者社区

[LeetCode] Reverse Vowels of a String 翻转字符串中的元音字母

Write a function that takes a string as input and reverse only the vowels of a string. Example 1: Given s = "hello", return "holle". Example 2: Given s = "leetcode", return "leotcede". 这道题让我们翻转字符串中的元....

文章 2022-02-16 来自:开发者社区

LeetCode:151_Reverse Words in a String | 字符串中单词的逆反 | Medium

题目:Reverse Words in a String Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 比较基础的一个题,拿到这个题,我的第一想法是利用vector来存每一个子串,然...

文章 2022-02-16 来自:开发者社区

[LeetCode] Reverse Words in a String III 翻转字符串中的单词之三

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. Example 1: Input: "Let's take LeetCode contest" Ou....

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