原创 171. Excel Sheet Column Number
Related to question Excel Sheet Column Title Given a column title as appear in an Excel sheet, return its correspondi
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原创 496. Next Greater Element I
You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all th
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原创 349. Intersection of Two Arrays
Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2,
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原创 387. First Unique Character in a String
Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. E
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原创 122. Best Time to Buy and Sell Stock II
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 t
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原创 500. Keyboard Row
Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American key
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原创 MYSQL命令行查詢中文亂碼問題解決方案
會出現中文亂碼的原因可能有以下幾點原因： （1）server問題 （2）table語系問題 （3）客戶端問題 解決方案： （1）找到安裝mysql時的目錄下my.ini文件，用記事本將其打開，看其中的default-character-s
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原创 SDN關鍵技術
openflow SDN是一種網絡架構理念，是一個框架，openflow是一個具體的協議，SDN網絡的控制層面和數據轉發層面通過標準的接口進行通信，openflow就是一種用於控制器和網絡設備之間通信的標準化南向接口。
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原创 168. Excel Sheet Column Title
168. Excel Sheet Column Title Add to List Description Submission Solutions Total Accepted: 92486Total Submiss
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原创 121. Best Time to Buy and Sell Stock
Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to
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原创 492. Construct the Rectangle
For a web developer, it is very important to know how to design a web page's size. So, given a specific rectangular we
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原创 504. Base 7
Given an integer, return its base 7 string representation. Example 1: Input: 100 Output: "202" Example 2: Input: -7 O
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原创 485. Max Consecutive Ones
Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Input: [1,1,0,1,1,1] Output
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原创 167. Two Sum II - Input array is sorted
Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a spec
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原创 教你如何搶微信紅包！實驗數據告訴你先搶後搶的區別有多大？
16年暑期的時候有幸在老師的帶動下和200多位同學一起在微信羣裏發紅包，用大量的實際數據研究了微信紅包背後的故事。 此片文章主要分析微信羣中紅包發放的數據，找到紅包金額分佈規律、時序分佈規律以及每個人多次搶到的紅包金額的分
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