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Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-neg 阅读全文
posted @ 2015-06-11 17:16
linqiaozhou
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Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 没认真想，看到一种方法，应该算是最简单的方法了吧 基础知识： 罗马数字是由字符I,V 阅读全文
posted @ 2015-06-11 16:50
linqiaozhou
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Divide two integers without using multiplication, division and mod operator. If it is overflow, return MAX_INT. 这道题属于数值处理的题目，对于整数处理的问题，比较重要的注意点在于符号和处理 阅读全文
posted @ 2015-06-11 16:26
linqiaozhou
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Given two integers representing the numerator and denominator of a fraction, return the fraction in string format. If the fractional part is repeating 阅读全文
posted @ 2015-06-11 14:59
linqiaozhou
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Implement pow(x, n). 下面介绍一下解决该问题的几种方法以及要注意的地方： 1)最直观容易想到的方法就是用递归方法求n个x的乘积，注意考虑n的正负号，时间复杂度为O(n) class Solution { public: double myPow(double x, int n) 阅读全文
posted @ 2015-06-11 11:23
linqiaozhou
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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. 转自：http://blog.csdn.net/ 阅读全文
posted @ 2015-06-11 11:10
linqiaozhou
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Excel Sheet Column Title Given a positive integer, return its corresponding column title as appear in an Excel sheet. For example: Python版： 1,10进制转成26 阅读全文
posted @ 2015-06-11 10:35
linqiaozhou
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