LeetCode 202 - 快乐数 (Python3|Go)[Set] Happy Number 满赋诸机 前小镇做题家,现大厂打工人。 来自专栏 · LeetCode 每日一题 题意 给定一个正整数,不断求每一位的平方和,判断最终是否能变为 1 ? 数据限制 1 <= n <= 2 ^ 31 - 1 样例 思路:Set 用used 维护已出现的数字集合。 如果n 不在
replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers. ...
replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers. ...
Happy Number LeetCode 202. Happy Number 题目描述: 编写一个算法来判断一个数是不是“快乐数”。 一个“快乐数”定义为:对于一个正整数,每一次将该数替换为它每个位置上的数字的平方和,然后重复这个过程直到这个数变为 1,也可能是无限循环但始终变不到 1。如果可以变为 1,那么这个数就是快乐数。 示例:...
Can you solve this real interview question? Happy Number - Write an algorithm to determine if a number n 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
[LeetCode]Happy Number Question 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 ...
19 is a happy number 1^2 + 9^2 = 82 8^2 + 2^2 = 68 6^2 + 8^2 = 100 1^2 + 0^2 + 0^2 = 1 LeetCode上的原题,请参见我之前的博客Happy Number。 解法一: classSolution {public:/** * @param n an integer * @return true if this is a happy number or false*/boolisHap...
每天来一道,面试不卡壳,今天是天天算法陪你成长的第15天。PS:今天发的太晚了,抱歉～ 本题可在LeetCode上OJ,链接 Happy Number, 感谢 @牧码人小鹏 题目描述:Write an algorithm to determine if a number is…
leetcode 202. Happy Number class Solution { public: bool isHappy(int n) { if(n <= 0) return false; set<int> res; while(res.count(n) == 0){ res.insert(n); int num = 0; while(n != 0){ num += (n%10)*(n%10);
Happy Number 快乐数(Easy)(JAVA) 题目地址: https://leetcode.com/problems/happy-number/ 题目描述: Write an algorithm to determine if a number n is “happy”. A happy number is a number def...lintcode-easy-Number of Islands Given a boolean 2D matrix, find the number of islands. Given...