leetcode：43. 字符串相乘(附加一些C++string其他小练习)
目录一.leetcode：43. 字符串相乘1.问题描述2.问题分析3.问题求解 二. leetcode：541. 反转字符串 II 1.问题描述 2.题解三. leetcode：125. 验证回文串1.问题描述2.双指针法求解 一.leetcode：43. 字符串相乘字符串相乘 - 力扣（Leet...
【LeetCode】string 类的几道简单题
👉仅反转字母👈给你一个字符串 s ，根据下述规则反转字符串：所有非英文字母保留在原有位置。所有英文字母（小写或大写）位置反转。返回反转后的 s 。思路：这道题可以借助快排的思想，左边找出字母，右边找出字母，然后进行交换。如果不是字母，就继续...
LeetCode 344. 反转字符串 Reverse String
LeetCode 344. 反转字符串 Reverse StringTable of Contents一、中文版二、英文版三、My answer四、解题报告一、中文版编写一个函数，其作用是将输入的字符串反转过来。输入字符串以字符数组 char[] 的形式给出。不要给另外的数组分配额外的空间，你必须原...
LeetCode 394. Decode String
DescriptionGiven an encoded string, return its decoded string.The encoding rule is: k[encoded_string], where the encoded_string inside the square brac...
LeetCode 344. Reverse String
DescriptionWrite a function that reverses a string. The input string is given as an array of characters char[].Do not allocate extra space for another...
LeetCode 97. Interleaving String
DescriptionGiven s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2.Example 1:Input: s1 = "aabcc", s2 = "dbbca", s3 = "aadbbcbcac"...
LeetCode 87. Scramble String
DescriptionGiven a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible re...
LeetCode之First Unique Character in a String
1、题目Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1.Examples:s = "leetcode" return ...
LeetCode之Reverse String II
1、题目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 ther...
LeetCode之Reverse String
1、题目：Write a function that takes a string as input and returns the string reversed.Example:Given s = "hello", return "olleh".2、代码实现：代码实现1: public stat...
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