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Write a program to find the node at which the intersection of two singly linked lists begins.For example, the following two linked lists:A: a... 阅读全文
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Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.public class Solution { pu... 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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Compare two version numbersversion1andversion2.Ifversion1>version2return 1, ifversion1first2){ return 1; } else if(first1<fir... 阅读全文
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Design a stack that supports push, pop, top, and retrieving the minimum element in constant time.push(x) -- Push element x onto stack.pop() -- Removes... 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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A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a peak element and return its index.... 阅读全文
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一、Min-max标准化min-max标准化方法是对原始数据进行线性变换。设minA和maxA分别为属性A的最小值和最大值，将A的一个原始值x通过min-max标准化映射成在区间[0,1]中的值x'，其公式为：新数据=（原数据-极小值）/（极大值-极小值）。二、z-score标准化这种方法基于原始数... 阅读全文
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Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times.You may assume that the ... 阅读全文
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最近一直帮老板写爬虫，写累了就寻思着找点乐子，碰巧平时喜欢逛豆瓣，就打算写一个自动回帖机器人，废话不多说我们进入正题:主要用到2个开源工具：Jsoup和httpclientStep 1:模拟登陆public static boolean login() throws IOException{ ... 阅读全文