xchangcheng - 博客园

2015年8月15日

摘要： Determine the number of bits required to flip if you want to convert integernto integerm.ExampleGivenn=31(11111),m=14(01110), return2.NoteBothnandmare... 阅读全文

posted @ 2015-08-15 10:04 xchangcheng 阅读(185) 评论(0) 推荐(0)

[LintCode] Count 1 in Binary

摘要： Count how many1in binary representation of a 32-bit integer.ExampleGiven32, return1Given5, return2Given1023, return9ChallengeIf the integer isnbits wi... 阅读全文

posted @ 2015-08-15 09:57 xchangcheng 阅读(194) 评论(0) 推荐(0)

2014年7月12日

[LeetCode] Count and Say

摘要： The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1is read off as"one 1"or11.11is read off as"tw... 阅读全文

posted @ 2014-07-12 22:04 xchangcheng 阅读(163) 评论(0) 推荐(0)

[LeetCode] Best Time to Buy and Sell Stock III

摘要： ay you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete at... 阅读全文

posted @ 2014-07-12 21:23 xchangcheng 阅读(193) 评论(0) 推荐(0)

2014年7月9日

[LeetCode] Combination Sum II

摘要： Combination Sum IIGiven a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sum... 阅读全文

posted @ 2014-07-09 22:40 xchangcheng 阅读(123) 评论(0) 推荐(0)

2014年7月5日

[LeetCode] Combination Sum

摘要： Combination SumGiven a set of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Thes... 阅读全文

posted @ 2014-07-05 23:11 xchangcheng 阅读(106) 评论(0) 推荐(0)

[LeetCode] Word Break II

摘要： Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl... 阅读全文

posted @ 2014-07-05 20:15 xchangcheng 阅读(178) 评论(0) 推荐(0)

[LeetCode] N-Queens

摘要： N-QueensTotal Accepted:9970Total Submissions:38919My SubmissionsThen-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no tw... 阅读全文

posted @ 2014-07-05 07:45 xchangcheng 阅读(203) 评论(0) 推荐(0)

[LeetCode] N-Queens II

摘要： N-Queens IIFollow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.solution:#includ... 阅读全文

posted @ 2014-07-05 07:43 xchangcheng 阅读(144) 评论(0) 推荐(0)

[LeetCode] Word Break

摘要： Given a stringsand a dictionary of wordsdict, determine ifscan be segmented into a space-separated sequence of one or more dictionary words.For exampl... 阅读全文

posted @ 2014-07-05 07:40 xchangcheng 阅读(167) 评论(0) 推荐(0)

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