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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
posted @ 2015-04-08 19:04
打小孩
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Related to question Excel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example: A... 阅读全文
posted @ 2015-04-08 17:54
打小孩
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Given an integer n, return the number of trailing zeroes in n!.Note: Your solution should be in logarithmic time complexity.Credits:Special thanks to ... 阅读全文
posted @ 2015-04-08 17:33
打小孩
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Rotate an array of n elements to the right by k steps.For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].Note:... 阅读全文
posted @ 2015-04-08 16:46
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Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321click to show spoilers.Have you thought about this?Here are ... 阅读全文
posted @ 2015-04-08 16:11
打小孩
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Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return... 阅读全文
posted @ 2015-04-08 15:39
打小孩
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Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight).For example, the 32-bit i... 阅读全文
posted @ 2015-04-08 10:48
打小孩
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You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo... 阅读全文
posted @ 2015-04-08 10:27
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