原创 Valid Anagram -- leetcode
Given two strings s and t, write a function to determine if t is an anagram of s. For example,s = "anagram", t = "na
2020-02-23 13:11:14
原创 Perfect Squares -- leetcode
Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which su
2020-02-23 13:11:04
原创 H-Index II -- leetcode
Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize your algorithm?
2020-02-23 13:11:04
原创 First Bad Version -- leetcode
You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of
2020-02-23 13:11:04
原创 Presto架構及原理
原文鏈接：https://blog.csdn.net/dxl342/article/details/78127384 Presto 是 Facebook 推出的一個基於Java開發的大數據分佈式
2019-10-26 05:05:36
原创 Nim Game -- leetcode
You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you
2018-09-03 02:59:47
原创 Longest Increasing Subsequence -- Leetcode
Given an unsorted array of integers, find the length of longest increasing subsequence. For example, Given [10, 9,
2018-09-03 02:59:40
原创 Super Ugly Number -- leetcode
Write a program to find the nth super ugly number. Super ugly numbers are positive numbers whose all prime factors a
2018-09-03 02:59:40
原创 Bulls and Cows -- leetcode
You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to g
2018-09-03 02:59:40
原创 Range Sum Query - Mutable -- Leetcode
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. The update(i,
2018-09-03 02:59:40
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原创 Minimum Height Trees -- Leetcode
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a root
2018-09-03 02:59:40
原创 The Log-Structured Merge-Tree
作者：Patrick O’Neil &Edward Cheng etc. 1996 原文：http://www.springerlink.com/content/rfkpd5yej9v5chrp/ 譯者：phylips@bmy 20
2018-09-03 02:59:38
原创 LevelDb日知錄
文章來自朗格科技http://www.samecity.com/ LevelDb日知錄之一：初識LevelDb 說起LevelDb也許您不清楚，但是如果作爲IT工程師，不知道下面兩位大神級別的工程師，那您的
2018-09-03 02:59:38
原创 跳錶SkipList
原文地址：http://www.cnblogs.com/xuqiang/archive/2011/05/22/2053516.html 跳錶SkipList 1.聊一聊跳錶作者的其人其事 2. 言歸正傳，跳錶簡介 3. 跳
2018-09-03 02:59:38
原创 Remove Invalid Parentheses -- Leetcode
Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results
2018-09-03 02:59:38