A. Diverse Strings A string is called diverse if it contains consecutive (adjacent) letters of the Latin alphabet and each letter occurs exactly once. For example, the following strings are diverse: "fced", "xyz", "r" and &qu…

A. Diverse Strings time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A string is called diverse if it contains consecutive (adjacent) letters of the Latin alphabet and each letter occurs exac…

题目:Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-negative. 就是实现大数乘法.嘿嘿,我先用long long直接乘试试手感,试过了不行.所以还是要用字符串表示才行. 我是这样做的,先实现两个子函数,一个是实现一个数和一个字符串的数相乘的结果…

这是悦乐书的第223次更新,第236篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第90题(顺位题号是415).给定两个非负整数num1和num2表示为字符串,返回num1和num2的总和. 注意: num1和num2的长度均<5100. num1和num2都只包含数字0-9. num1和num2都不包含任何前导零. 您不能使用任何内置BigInteger库或直接将输入转换为整数. 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 6…

这是悦乐书的第191次更新,第194篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第50题(顺位题号是205).给定两个字符串s和t,确定它们是否是同构的.如果s中的字符可以替换为t,则两个字符串是同构的. 所有出现的字符必须替换为另一个字符,同时保留字符的顺序. 没有两个字符可以映射到相同的字符,但字符可以映射到自身.例如: 输入:s ="egg",t ="add" 输出:true 输入:s ="foo",t =&…

Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-negative. class Solution { public: string multiply(string num1, string num2) { } }; 我的解法是每次提取num2的一位,然后…

Content 我们定义一个字符串是合法的,当且仅当这个字符串是"连续排列"(按照字母表顺序排序).现在给出 \(n\) 个字符串 \(s_1,s_2,s_3,...,s_n\),判断它们是否合法. 数据范围:\(1\leqslant n\leqslant 100,|s_i|\leqslant 100\) 且 \(s_i\) 仅由小写英文字母组成. Solution 这道题目关键的一点就在于:给字符串排序.我在 CF975A的题解 中曾详细讲过如何用 \(\texttt{sort}\)…

Valid Palindrome吐槽一下Leetcode上各种不定义标准的输入输出(只是面试时起码能够问一下输入输出格式...),此篇文章不是详细的题解,是自己刷LeetCode的一个笔记吧,尽管没有代码,可是略微难一点的都会标出主要思路,便于以后复习 PS:题目中有"水题"两字的都是一遍AC,没有标注的都说明了问题,顺序依照Leetcode上时间倒序排列,少量题目因为和之前的题目有相关性,因此将其放在一起,比方12题和13题,因此中间可能会"缺少"几道题目,缺少的…

A - Diverse Strings A string is called diverse if it contains consecutive (adjacent) letters of the Latin alphabet and each letter occurs exactly once. For example, the following strings are diverse: "fced", "xyz", "r" and &q…

http://codeforces.com/contest/1144 A. Diverse Strings A string is called diverse if it contains consecutive (adjacent) letters of the Latin alphabet and each letter occurs exactly once. For example, the following strings are diverse: "fced", &qu…