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转载自网友zdd的博客『算法-求二进制数中1的个数』问题描述任意给定一个32位无符号整数n，求n的二进制表示中1的个数，比如n = 5（0101）时，返回2，n = 15（1111）时，返回4这也是一道比较经典的题目了，相信不少人面试的时候可能遇到过这道题吧，下面介绍了几种方法来实现这道题，相信很多... 阅读全文
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Given an integer, write a function to determine if it is a power of two.Credits:Special thanks to@jianchao.li.fighterfor adding this problem and creat... 阅读全文
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Given a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1 -> A 2 -> B 3 -> C ... 26 ->... 阅读全文
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Related to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example: A ... 阅读全文
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Find the total area covered by tworectilinearrectangles in a2Dplane.Each rectangle is defined by its bottom left corner and top right corner as shown ... 阅读全文
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Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher's h-index.According ... 阅读全文