内存消耗:38.5 MB, 在所有 Java 提交中击败了48.74%的用户 通过测试用例:404 / 404 1classSolution {2publicstaticintresults[]=newint[810];3publicstaticintresults_count=0;45publicstaticbooleanisHappy(intn) {6results_count=0;7do{8intdigits[]=newint[10];9intlength_n=0;1011for(inti=0; n>=1...
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...
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 it will stay), or it loops endlessly in a cycle which does not include 1...
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…
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...
《Hello 算法》:动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新,English version ongoing - hello-algo/mkdocs.yml at main · do-happy/hello-algo
leetcode/problems/src/heap/TopKFrequentWords.java/ Jump to 77 lines (68 sloc)2.52 KB RawBlame packageheap; importjava.util.*; /** * Created by gouthamvidyapradhan on 07/04/2018. * Given a non-empty list of words, return the k most frequent elements. ...
202. Happy Number【leetcode】java,hashSet,算法 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 ...
可以类似Linked List Cycle用快慢指针找到loop的出口, 若出来时walker 和 runner 都是1就是happy number. AC Java: 1classSolution {2publicbooleanisHappy(intn) {3if(n <= 0){4returnfalse;5}67intwalker =n;8intrunner =next(n);9while(walker !=runner){10walker =next(walker);11runner =next(nex...