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【题目描述】 The structure of Segment Tree is a binary tree which each node has two attributes start and end denote an segment / interval. start and end are 阅读全文
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【题目描述】 Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of Sis 1000, and there exists one unique 阅读全文
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为了能够顺利拿到offer，我做了很长时间的准备，在Lincode上刷题，报算法班，然后耗了一个多星期做了一份自己满意的简历。我的努力没有白费，最后我成功拿到Yahoo的offer，现已入职近半年。 我通过内推拿到的面试机会。面试时间是在去年十月份，onsite面试花了五个多小时。面试官很nice， 阅读全文
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【题目描述】 Given a permutation which may contain repeated numbers, find its index in all the permutations of these numbers, which are ordered in lexicogra 阅读全文
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【题目描述】 Given a permutation which contains no repeated number, find its index in all the permutations of these numbers, which are ordered in lexicograp 阅读全文