链接地址:https://leetcode.com/problems/happy-number/ 2 解决方案 java代码如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 public class Solution { public boolean isHappy(int n) { int result = 0; ArrayList<Integer...
LeetCode 202. Happy Number (快乐数字) 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 nu...
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 "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 rep...
classSolution{ publicbooleanisHappy(intn) { Set<Integer>set=newHashSet<>(); while(n!=1&&!set.contains(n)){//条件:如果n不等于1并且n在set中并未存在,就将该数添加到set中 set.add(n); n=getIndexnumber(n);//更新n的值 } returnn==1; } //通过该方法可以求出对应数字每个位上的平方之...
详见:https://leetcode.com/problems/happy-number/description/ Java实现: class Solution { public boolean isHappy(int n) { Set<Integer> s=new HashSet<Integer>(); while(n!=1){ int tmp=0; while(n>0){ tmp+=(n%10)*(n%10);
Leetcode - Happy Number 最近已经开始紧张的期末复习了,但是看到大家都在进行编程训练,为今年九月找工作做准备,我的心不能定。因为我知道,英国的成绩对我无意义,但是编程能力是我以后吃饭的家伙,我绝对不能落下。 之前一直在上普林斯顿的算法课。最后三周的课,每次上耗时太长,实在抽不出时间,而且自己已经明显过...
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two sumLeetCode #1. two sum 1.1. solution 1.2 Screenshot 2.0.LeetCode#202.HappyNumber2.1...://www.youtube.com/watch?v=y_xnyjs9gcc “WhatisaHashTable Data Structure - IntroductiontoHash Tables , Part 智能推荐 算法:Floyd判圈算法 文章...
two sumLeetCode #1. two sum 1.1. solution 1.2 Screenshot 2.0.LeetCode#202.HappyNumber2.1...://www.youtube.com/watch?v=y_xnyjs9gcc “WhatisaHashTable Data Structure - IntroductiontoHash Tables , Part 智能推荐 算法:Floyd判圈算法 文章...