随笔分类 -  LeetCode__算法algorithm

逻辑思维--算法设计与分析
Leetcode- 299. Bulls and Cows
摘要：Total Accepted: 19397 Total Submissions: 67937 Difficulty: Easy You are playing the following Bulls and Cows game with your friend: You write down a n 阅读全文
posted @ 2016-02-22 13:12 Decmber 阅读(159) 评论(0) 推荐(0)
Leetcode-234. Palindrome Linked List
摘要：Given a singly linked list, determine if it is a palindrome.Follow up:Could you do it in O(n) time and O(1) space?/** * Definition for singly-linked l... 阅读全文
posted @ 2016-01-27 14:28 Decmber 阅读(167) 评论(0) 推荐(0)
Leetcode-228 Summary Ranges
摘要：Given a sorted integer array without duplicates, return the summary of its ranges.For example, given[0,1,2,4,5,7], return["0->2","4->5","7"].Credits:S... 阅读全文
posted @ 2016-01-25 10:06 Decmber 阅读(122) 评论(0) 推荐(0)
Leetcode-190. Reverse Bits
摘要：Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ... 阅读全文
posted @ 2016-01-16 16:56 Decmber 阅读(146) 评论(0) 推荐(0)
Leetcode-231. Power of Two
摘要：1.方法一：n&(n-1)=0/** * @param {number} n * @return {boolean} */var isPowerOfTwo = function(n) { if((n>0) && (!(n&(n-1)))){ return true; } ... 阅读全文
posted @ 2016-01-16 11:15 Decmber 阅读(135) 评论(0) 推荐(0)
LeetCode--Group Anagrams--Java
摘要：Given an array of strings, group anagrams together.For example, given:["eat", "tea", "tan", "ate", "nat", "bat"],Return:[ ["ate", "eat","tea"], ["na... 阅读全文
posted @ 2015-10-30 21:55 Decmber 阅读(1253) 评论(0) 推荐(0)
LeetCode--Valid Anagram--JavaScript
摘要：Given two stringssandt, write a function to determine iftis an anagram ofs.For example,s= "anagram",t= "nagaram", return true.s= "rat",t= "car", retur... 阅读全文
posted @ 2015-10-30 21:12 Decmber 阅读(180) 评论(0) 推荐(0)
LeetCode--Ugly Number&&Ugly NumberⅡ--JavaScript&Java
摘要：Ugly NumberⅡWrite a program to find then-th ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,1, 2, 3... 阅读全文
posted @ 2015-10-29 23:22 Decmber 阅读(217) 评论(0) 推荐(0)
Java-Stack&Queue-LeetCode
摘要：Implement Queue using Stacksclass MyQueue { Stack s1 = new Stack(); Stack s2 = new Stack(); // Push element x to the back of queue. ... 阅读全文
posted @ 2015-10-29 21:43 Decmber 阅读(175) 评论(0) 推荐(0)
LeetCode--Remove Linked List Elements--JavaScript
摘要：/** * Definition for singly-linked list. * function ListNode(val) { * this.val = val; * this.next = null; * } *//** * @param {ListNode} head *... 阅读全文
posted @ 2015-10-21 22:24 Decmber 阅读(116) 评论(0) 推荐(0)
LeetCode--Word Pattern---JavaScript&Java
摘要：JavaScript/** * @param {string} pattern * @param {string} str * @return {boolean} */var wordPattern = function(pattern, str) { var strArray = str.s... 阅读全文
posted @ 2015-10-19 00:43 Decmber 阅读(177) 评论(0) 推荐(0)
LeetCode_Nim Game--JavaScript
摘要：JavaScript/*** @param {number} n* @return {boolean}*/var canWinNim = function(n) {if(n % 4 == 0){return false;}else{return true;}};拓游戏：n个石子，一次最多拿m个棋子；... 阅读全文
posted @ 2015-10-17 23:57 Decmber 阅读(143) 评论(0) 推荐(0)