Description You're in the middle of writing your newspaper's end-of-year economics summary, and you've decided that you want to show a number of charts to demonstrate how different stocks have performed over the course of the last year. You've alread…

题目大意 给出一个折线图,有N条线段,你想要把这些线段分成几个集合,使得每个集合中任意两条线段不相交. 求最少集合数. 分析 喵帕斯:以下提及的所有折线均指横坐标在\([1,k]\)里的折线段. 思考两个折线若不相交会是什么情况? 对,即一个在上,一个在下(怎么有点奇怪呢). 比如折线\(a\)在上,折线\(b\)在下,尝试对所有满足此关系的折线二元组连一条\(a\)到\(b\)的有向边,我们可以发现,使用一个集合可以走一条路径,那么题目求最小集合数,即求走最少的路径,师所有点全部被覆盖. 然后…

This article explains how to use a chart to display data in an ASP.NET Web Pages (Razor) website by using the Chart helper. What you'll learn: How to display data in a chart. How to style charts using built-in themes. How to save charts and how to ca…

-----------------------------最优化问题------------------------------------- ----------------------常规动态规划  SOJ1162 I-Keyboard  SOJ1685 Chopsticks SOJ1679 Gangsters SOJ2096 Maximum Submatrix  SOJ2111 littleken bg SOJ2142 Cow Exhibition  SOJ2505 The County…

HighChars基本概述 Highcharts是一个纯js写成的插件库,很好的外观表现可以满足任何图标需求. 开始使用chart之前进行配置 全局配置: Highcharts.setOptions({ global: { useUTC: false }}); 主配置中参数含义: $("#container").highcharts({ accessibility:无障碍的设计{ describeSingleSeries: false enabled: true   keyboardN…

Select the JavaScript graphing libraries you would like to compare:             Overview Summary FusionCharts Delightful JavaScript charts for web and mobile applications Google Chart Tools Display live data on your site Sencha ExtJS Charts Plugin-fr…

Python第三方库之openpyxl(11) Stock Charts(股票图) 在工作表上按特定顺序排列的列或行中的数据可以在股票图表中绘制.正如其名称所暗示的,股票图表通常被用来说明股价的波动.然而,这张图表也可以用于科学数据.例如,你可以用一个股票图表来表示每日或每年的温度波动.您必须按照正确的顺序组织您的数据,以创建股票图表. 在工作表中组织股票图表数据是非常重要的.例如,为了创建一个简单的高低收盘价的股票图表,您应该按照这个顺序将您的数据以高.低和接近的形式排列为列标题. 尽管股票图…

https://blog.csdn.net/weixin_43094965/article/details/82226263一.Excel 1.Excel文件三个对象 workbook: 工作簿,一个excel文件包含多个sheet.sheet:工作表,一个workbook有多个,表名识别,如“sheet1”,“sheet2”等.cell: 单元格,存储数据对象 2.excel定义的图 excel定义的图分两级类别描述,第一级分别有九大类,如下所示 area: 面积图bar: 转置直方图colu…

Qt3升至Qt4需要注意的几件事项浅谈 公司以前的项目是用Qt3写的,随着时间的推移慢慢显示出Qt3有多方面的限制,因此先公司决定用Qt4来改写这个项目,并为软件添加新功能,在此背景先编写此文章. 先扯一下没用的:gotfocus是获得焦点时触发,Lostfocus是失去焦点的时候触发.比如:新建两个文本框,当点击第一个文本框的时候,则触发第一个文本框的getfocus事件,表示第一个文本框获得了焦点,可以进行操作了.然后鼠标点击第二个文本框的时候,第一个文本框首先触发lostfocus事件,标…

Around September of 2016 I wrote two articles on using Python for accessing, visualizing, and evaluating trading strategies (see part 1 and part 2). These have been my most popular posts, up until I published my article on learning programming langua…

Using the latest advancements in AI to predict stock market movements 2019-01-13 21:31:18 This blog is copied from: https://github.com/borisbanushev/stockpredictionai In this notebook I will create a complete process for predicting stock price moveme…

1.到github网址上下载zip压缩包https://github.com/danielgindi/Charts 2.然后将解压后的文件夹整个拖到自己的工程文件夹下(很多教程只让拖xcodeproj文件,但我拖了不好使),如下图: 3.然后用xcode打开工程,将刚才拖进去的Charts-master文件下的Charts.xcodeproj 4.添加charts框架,如下图 5.创建桥接文件,Com + N新建文件: 然后就生成这两文件. 6.在ChartsDemo(你的工程文件名)-Brid…

Charts.js的介绍自行百度 首先下载Charts.js,官网:http://chartjs.cn/ charts.js 托管在了github上,下载下来后加解压出src中的文件即可.其中有charts.js文件,其中就是对其他文件的引用. 开始使用: 具体的使用咋官网Api中都有详细的说明,可自行查阅,传送门:http://www.chartjs.org/docs/#chart-configuration-chart-data <script src="Chart.js"&…

简介 ECharts,缩写来自Enterprise Charts,商业级数据图表,一个纯Javascript的图表库,可以流畅的运行在PC和移动设备上,兼容当前绝大部分浏览器(IE6/7/8/9/10/11,chrome,firefox,Safari等),底层依赖轻量级的Canvas类库ZRender,提供直观,生动,可交互,可高度个性化定制的数据可视化图表.创新的拖拽重计算.数据视图.值域漫游等特性大大增强了用户体验,赋予了用户对数据进行挖掘.整合的能力. 支持折线图(区域图).柱状图(条状图…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times) wit…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most k transactions. Note:You may not engage in multiple transactions at the same time (ie, yo…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. Note:You may not engage in multiple transactions at the same time (ie,…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times). Ho…

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. 这道题相…

Charts是一个很优秀的图表库,它支持Android.iOS.tvOS和macOS,这样使用起来,可以节省学习成本,可以从GitHub上了解更多信息.本文记录在iOS项目上的集成与使用. Charts目前版本是3.0.1,要求使用xcode8和swift3.0,最低支持iOS8.0,如果需要使用2.3.0版本的,需要在xcode8设置使用swift2.3版本的编译器,但是,苹果估计迟早会在后面版本移除2.3版本的支持吧,从swift发布开始就一路使用过来的同学体会应该很深,每次升级xcode,…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times). Ho…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. Note: You may not engage in multiple transactions at the same time (ie,…

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times). Ho…

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. Have…

一.简介 大数据时代,重新定义图表的时候到了,所以随之ECharts就随之出现了. ECharts(Enterprise Charts 商业产品图表库) 是基于Canvas的,纯Javascript 的图表库,提供直观,生动,可交互,可个性化定制的 数据可视化图表.创新的拖拽重计算.数据视图.值域漫游等特性大大增强了用户体验,赋予了用户对数据进行挖掘.整合的能力.      ECharts 是指 Enterprise Charts(商业产品图表库),提供商业产品常用图表库,底层基于 ZRende…

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. Inva…

问题: Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. 依旧还是那个熟悉的味道,如果II是I的另一个版本,那么III就是他们的一个升级版. 在这个版本中只能交易两次,也就是买卖各两次,其它条…

问题: Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times)…

问题: Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit.…

Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit. Exam…