题目:在一个字符串中找到第一个只出现一次的字符.如输入 abaccdeff,则输出 b. 分析:这道题是 2006 年 google 的一道笔试题. 分析: 用 Hash, 时间和空间复杂度是 O(N) 当然,如果字符是 ASCII 编码的话,可以开一个 256长的数组来对每个字符出现的次数进行记录. 下面的代码采用了 unordered_map, 用 HASH 实现.. 有几点注意的地方: 1.  unordered_map[key] ,返回一个 reference, 指向键值是 key 的元…

http://www.topwcftutorials.net/2012/09/wcf-faqs-part2.html WCF Interview Questions – Part 2 This WCF tutorial is part-2 in series of WCF Interview Questions. Other parts in this series can be found here. 这是WCF问答系列教程中的第二部分,其他部分可以在下面的链接中找到: WCF Service…

http://www.topwcftutorials.net/2012/08/wcf-faqs-part1.html WCF Interview Questions – Part 1 This WCF Tutorial is a collection of most frequently asked interview questions about Windows Communication Foundation (WCF) covering the beginner to professio…

http://www.careerride.com/Swing-AWT-Interview-Questions.aspx   Swing interview questions and answers for freshers and experienced candidates. These interview questions and answers on Swing will help you strengthen your technical skills, prepare for t…

WCF Interview Questions – Part 4   This WCF service tutorial is part-4 in series of WCF Interview Questions. Before reading this please go through the following articles in this series. 这是WCF问答教程的第四部分,在阅读之前请先去看下面列出来的文章. WCF Service Interview Question…

State, Stratergy, Visitor Adapter and fly weight design pattern from interview perspective. (I) Can you explain state pattern? (I) Can you explain strategy pattern? (A) Can you explain visitor pattern? (A) What the difference between visitor and stra…

Factory, Abstract factory, prototype pattern (B) What are design patterns? (A) Can you explain factory pattern? (I) Can you explain abstract factory pattern? (I)Can you explain builder pattern? (I) Can you explain prototype pattern? (A) Can you expla…

Given 2*n + 1 numbers, every numbers occurs twice except one, find it. Have you met this question in a real interview? Yes Example Given [1,2,2,1,3,4,3], return 4 Challenge One-pass, constant extra space. LeetCode上的原题,请参见我之前的博客Single Number. class So…

Recruit Coupon Purchase Winner's Interview: 2nd place, Halla Yang Recruit Ponpare is Japan's leading joint coupon site, offering huge discounts on everything from hot yoga, to gourmet sushi, to a summer concert bonanza. The Recruit Coupon Purchase Pr…

http://www.realtimerendering.com/blog/tag/bungie/ Digital Foundry interview with Halo: Reach developers December 16, 2010 in Resources by Naty | No comments Halo: Reach was one of the big game releases of 2010, so I was pleased to see a detailed tech…