LeetCode算法题-Happy Number(Java实现) 这是悦乐书的第188次更新,第190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47题(顺位题号是202)。编写算法以确定数字是否“幸福”。 幸福数字是由以下过程定义的数字:从任何正整数开始,将数字替换为其数字的平方和,并重复该过程,直到最后数字等于1。
202. Happy Number Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where...
Java Code Editor: Contribute your code and comments through Disqus. Previous:Write a Java program to print out the first 10 Catalan numbers by extracting them from Pascal's triangle. Next:Write a Java program to check whether a given number is a happy number or unhappy number....
leetcode 202. Happy Number Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals ...
Java Code: importjava.util.HashSet;importjava.util.Scanner;importjava.util.Set;publicclassExample10{publicstaticbooleanisHappy_number(intnum){Set<Integer>unique_num=newHashSet<Integer>();while(unique_num.add(num)){intvalue=0;while(num>0){value+=Math.pow(num%10,2);num/=10;}num=value;}...
6. Conclusion In this article, we learned the concept of a happy number and implemented Java methods to determine whether a given number is happy. As always, the complete source code for the examples is availableover on GitHub.
来一道题目体验下: Happy Number 在真实面试的时候,如果遇到这道题目,很多刚开始刷题的求职者上来就说想实现code,把答案写出来! Hold on! Hold on! 推荐的解题逻辑是 1. 解读题目的含义与讲讲函数signature输入和输出是什么 2. 讲解算法(非实现),依据算法需求选择数据结构 3. 代码实现 4. 找测试数据,验证cod...
WORD_NUMBER_UPPER ARITHMETIC ARITHMETIC_ZH 二、安装 如果你的项目使用的是Maven进行依赖管理,你只需向pom.xml文件添加下面的配置即可: <dependency> <groupId>com.ramostear</groupId> <artifactId>Happy-Captcha</artifactId> <version>1.0.1</version> </dependency> Gradle用户则可以通过引入如下的配置获取...
Happy Captcha是一款易于使用的Java验证码软件包,旨在花最短的时间,最少的代码量,实现Web站点的验证码功能。Happy Captcha完全遵循Apache 2.0开源许可协议,你可以自由使用该软件,如您在使用Happy Captcha时发现软件的任何缺陷,欢迎随时与我联系。 Happy Capthca的源代码已托管到Github和Gitee,你可以访问下面的链接获取更...
NUMBER NUMBER_ZH_CN NUMBER_ZH_HK DEFAULT WORD WORD_LOWER WORD_UPPER WORD_NUMBER_LOWER WORD_NUMBER_UPPER ARITHMETIC ARITHMETIC_ZH 二、安装 如果你的项目使用的是Maven进行依赖管理,你只需向pom.xml文件添加下面的配置即可: <dependency> <groupId>com.ramostear</groupId> <artifactId>Happy-Captcha</artifa...