Operator Overload 1. 在重载下标运算符时(数组符号):不可重载为友元函数,必须是非static类的成员函数. why 2. overload ++ 时,如果是:   int a; ++a; ++在前面时,怎么办?   答:counter counter::operator ++(int) 3. class F {      public:         double operator () (double x, double y) const;    };   为什么con…

Given n points on a 2D plane, find the maximum number of points that lie on the same straight line. 思路 关键是浮点数做key不靠谱,struct hash以及 int calcGCD(int a, int b)的写法 代码 /** * Definition for a point. * struct Point { * int x; * int y; * Point() : x(0), y(0)…

About this Course If you want to break into cutting-edge AI, this course will help you do so. Deep learning engineers are highly sought after, and mastering deep learning will give you numerous new career opportunities. Deep learning is also a new "s…

Scala's object-oriented collections support mutable and immutable type hierarchies. Also support functional higher-order operations such as map, filter, and reduce that let you use expression-oriented programming in collections. Higher-order operatio…

In this tutorial we will discuss about different types of questions that can be used in a Java interview, in order for the employer to test your skills in Java and object-oriented programming in general. In the following sections we will discuss abou…

Introduction to Python Wrap C/C++ libraries into Python via Cython and CFFI. Python implementations for production quality: CPython (Classic Python) Implemented in C Python Software Foundation License V2, compatible with GPL, proprietary, free, BSD/A…

原文: http://stackoverflow.com/questions/7888880/what-is-redis-and-what-do-i-use-it-for Redis = Remote Dictionary Service TL;DR: If you can map a use case to Redis and discover you aren't at risk of running out of RAM by using Redis there is a good cha…

https://docs.mongodb.com/manual/introduction/ { name: "sue", age: 3, status: "A", groups: ["news", "sports"] } 添加字段 db.Analyse_user.updateMany( {}, {$set: {clue_area:[],clue_category:[]}}); > db.auth("pyspar…

笔记前言: <Computer Organization and Design: The Hardware/Software Interface>,中文译名,<计算机组成与设计:硬件/软件接口>,是计算机组成原理的经典入门教材之一.节奏紧凑又不紧张,内容充实又不冗长,语言表述朴实易懂又不故作高深,是一本非常适合初次接触计算机组成原理的学生阅读的入门教材. 读书笔记系列博客是主要是记录我学习和阅读中的心得和体会.既然是读书笔记,肯定不会面面俱到,那就成了抄书笔记了.所有笔记系列博客力…

https://highops.com/insights/service-discovery-6-questions-to-4-experts/ What’s Service Discovery? Its benefits and challenges? 05/07/15 by ABS Share on Facebook Twitter Google Plus LinkedIn The successful format of ‘Immutable Infrastructure: 6 quest…