题目:Reverse String(反转字符串) 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 ...
1. Description: 2. Examples: 3.Solutions: 1/**2* Created by sheepcore on 2019-02-243*/4classSolution {5publicvoidreverseString(char[] s) {6charch;7for(inti=0; i<s.length/2; i++){8ch =s[i];9s[i] = s[s.length-1-i];10s[s.length-1-i] =ch;11}12}13}...
题目地址:https://leetcode.com/problems/reverse-string/Total Accepted: 11014 Total Submissions: 18864 Difficulty: Easy题目描述Write a function that takes a string as input and returns the string reversed.Example 1:Input: "hello" Output: "olleh" Example 2:...
2. Analysis: The input string is in a array of character s, so we can eaily use the reverse() funtion of Python which can exactly reverse the list. Another way we can use two pointers,one points the head another points the tail. 3. Code: reverse function Two pointers 4.Conclusion: T...
leetcode Reverse Integer & Reverse a string---重点 https://leetcode.com/problems/reverse-integer/ understanding: 最intuitive的办法就是直接把integer化成string,然后变成list。这里如果化成string,会有溢出的问题,比如integer是1534236469,这个数字反过来就是个很大的数,溢出了,必须返回0. 如果是直接用int计算的,...
class Solution { public: void reverseWords(string &s) { stringstream ss(s); vector<string> res; string tmp = ""; while (ss >> tmp) res.push_back(tmp); if (res.size() ==0) s = ""; else { s = res[res.size() - 1]; ...
新手村100题汇总:王几行xing:【Python-转码刷题】LeetCode 力扣新手村100题,及刷题顺序 读题 这题看着简单,那咱们就试试用 Python 最简单的方法求解。 1 Python 解法一:reverse 函数 ## LeetCode 344E - Reversing String, 简单做法 reversefromtypingimportListclassSolution:defreverseString(self,s:List[str...
输入:“leetcode” 输出:“leotcede” 注意:元音不包括字母“y”。 本次解题使用的开发工具是eclipse,jdk使用的版本是1.8,环境是win7 64位系统,使用Java语言编写和测试。 02 第一种解法 元音字母包含:a e i o u 这五个,利用栈先进后出的特性,把字符串转为字符数组,利用迭代,遇到五个元音字母(包含大小写...
1. Description Reverse Vowels of a String 2. Solution Version 1 class Solution{public:stringreverseVowels(string s){unordered_map<char,char>m;m['a']='a';m['e']='e';m['i']='i';m['o']='o';m['u']='u';m['A']='a';m['E']='e';m['I']='i';m['O']='o';m['...
Can you solve this real interview question? Reverse Words in a String - Given an input string s, reverse the order of the words. A word is defined as a sequence of non-space characters. The words in s will be separated by at least one space. Return a s