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Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, return1->2.Given1->1->2->3->3, retu... 阅读全文
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Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: Pana... 阅读全文
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不戚戚于贫贱，不汲汲于富贵 ---五柳先生Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dict... 阅读全文
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http://www.cnblogs.com/hansongjiang/p/3810825.html上回写了个博客，是关于1块钱，用 1,2,5分等硬币找钱，共有多种，当时是用搜索出所以可能的组合方式找的，当时参考的博客没看懂。也没仔细想。无意中看到http://www.ibm.com/develo... 阅读全文