原创 The Power of Two Random Choices - Summary
Algorithm Introduction: Introduction Paper: The Power of Two Random Choices
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原创 [LeetCode 292] Nim Game
You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you
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原创 [LeetCode 295] Find Median from Data Stream
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So
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原创 kafka in a nutshell -- kafka 簡介
Kafka is a messaging system. That’s it. So why all the hype? In realitymessaging is a hugely important piece of infr
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原创 [LeetCode 156] Binary Tree Upside Down
Given a binary tree where all the right nodes are either leaf nodes with a sibling (a left node that shares the same
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原创 [LeetCode 214] Shortest Palindrome
Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return th
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原创 [LeetCode 290] Word Pattern
Given a pattern and a string str, find if str follows the same pattern. Examples: pattern = "abba", str = "dog cat cat
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原创 System Design 之 Tiny Uri
http://www.zhihu.com/question/29270034?sort=created Requirement 1. Generate short url, from long to short url 2. Recove
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原创 [LeetCode 218] The Skyline Problem
A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a di
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原创 [LeetCode 228] Summary Ranges
Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1,2,4,5,7], r
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原创 [LeetCode 188] Best Time to Buy and Sell Stock IV
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find th
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原创 [LeetCode 289] Game of Life
According to the Wikipedia's article: "The Game of Life, also known simply as Life, is a cellular automaton devised b
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原创 [LeetCode 174] Dungeon Game
The demons had captured the princess (P) and imprisoned her in the bottom-right corner of a dungeon. The dungeon consi
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原创 [LeetCode 293] Flip Game
You are playing the following Flip Game with your friend: Given a string that contains only these two characters:+ and
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原创 [LeetCode 297] Serialize and Deserialize Binary Tree
Serialization is the process of converting a data structure or object into a sequence of bits so that it can be sto
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