flow

Execution Code Tracking - How to know which code has been executed in project?

你离开我真会死。 提交于 2019-12-08 09:42:28
问题 Let say that I have open source project from which I would like to borrow some functionality. Can I get some sort of report generated during execution and/or interaction of this project? Report should contain e.g.: which functions has been called, in which order, which classes has been instantiated etc.? Would be nice to have some graphic output for that... you know, if else tree and highlighted the executed branch etc. I am mostly interested in python and C (perl would be fine too) but if

What is the prefered way to save/restore screen state with Flow + Mortar + Dagger2?

爱⌒轻易说出口 提交于 2019-12-07 14:26:32
问题 I'm trying to convert an Acticity + Fragments app to Flow + Mortar + Dagger2 I would like to save & restore screen state when jumping from screen to screen (at least backwards). What is the prefered/recommanded way to do that ? I have spent quite a lot of time looking at flow and mortar readmes and samples but couldn't figure it out (the documentation and samples are minimal and only deal with simple/static/unique data). Say, for example, you have a browser-like app that moves from Page to

网络流初步(2)

亡梦爱人 提交于 2019-12-06 10:58:44
通过颓了一个题解,终于也搞定了这个专题。 大神都颓题解。           ——By skyh 无限之环 颓题解就行了。 建图是真的恶心。不很好想。 还是自己想到了一部分,就是看到题目里说“直线形不能转”就感觉要分类讨论。 无非就那么几类:空格,单个管,L型,直线型,T型,十字形 我一直以为这道题是最小割,然后我就死掉了,思维僵化,实际上这道题是费用流。 惯性拆点,每个点拆成5个,分别是原点以及四个方向。 而且还要染色,就是那种棋盘黑白染色。 根据水管最开始的方向,将原点与剩下的4个点连边。并且根据黑白颜色讲源汇与原点连边。(我是白连源黑连汇) 然后考虑旋转,分类讨论: 单个管:这个好说,讲原有方向分别向其它方向连边,对立方向费用为2其余费用为1。 L型:它有3种旋转,改变一个支管的方向费用为1,全都改变为2,所以关键就在于改变了几个管。   以上右为例,上向下连1费用边,右向左连1费用边,这样就做到了上述要求。(注意不能是上向左,下向右,考虑实际含义) 直线型:不能旋转,不连边 T型:和单个管差不多。 十字型:不用连。 这样的话,黑白染色之后跑流,如果流量==水管接头个数/2,那么就有解,就输出最小费用,否则0。 1 #include<cstdio> 2 #include<iostream> 3 using namespace std; 4 const int xx[]={-1

Flow入门初识

风流意气都作罢 提交于 2019-12-06 05:26:45
Flow是facebook出品的JavaScript静态类型检查工具。 由于JavaScript是动态类型语言,它的灵活性也会造成一些代码隐患,使用Flow可以在编译期尽早发现由类型错误引起的bug,这种方式非常有利于大型项目源码的开发和维护, 1.Flow工作方式 类型推断:通过变量的使用上下文来推断,然后根据这些推断来判断类型。 类型注释:事先注释数据类型,Flow会基于注释来判断。 2.Flow安装 $mkdir flowtest $npm install --g flow-bin $flow init //初始化,创建一个.flowconfig文档 $flow 3.使用 // @flow function square(n: number): number { return n * n; } square("2"); // Error! $flow (1)原始数据类型 // @flow function concat(a: string, b: string) { return a + b; } concat("1", 2); // Error! // @flow function method(x: number, y: string, z: boolean) { // ... } method(3.14, "hello", true);//No errors! //

网络流初步(1)

爷,独闯天下 提交于 2019-12-06 04:09:36
总算A串。来屯思路的。 蜥蜴 没有比这个更板子的了。对于每个石柱拆点成两个,连边限制流量。 1 #include<bits/stdc++.h> 2 using namespace std; 3 int cnt=2,in[22][22],out[22][22],n,m,d,tms[22][22],ecnt=1,dep[1005]; 4 int fir[1005],l[50005],to[50005],v[50005],x,maxflow,q[1005],t,cntt; 5 int fab(int p){return p*p;} 6 void connect(int a,int b,int vv){ 7 l[++ecnt]=fir[a];fir[a]=ecnt;to[ecnt]=b;v[ecnt]=vv; 8 l[++ecnt]=fir[b];fir[b]=ecnt;to[ecnt]=a; 9 } 10 int read1(){ 11 register int ch=getchar(); 12 while(ch<'0'||ch>'3')ch=getchar(); 13 return ch-48; 14 } 15 int read2(){ 16 register int ch=getchar(); 17 while(ch!='L'&&ch!='.')ch=getchar(); 18

Spring Batch_Step Flow

左心房为你撑大大i 提交于 2019-12-06 03:35:46
Spring Batch学习_Step Flow http://docs.spring.io/spring-batch/trunk/reference/html/configureStep.html With the ability to group steps together within an owning job comes the need to be able to control how the job 'flows' from one step to another. The failure of a Step doesn't necessarily mean that the Job should fail. Furthermore, there may be more than one type of 'success' which determines which Step should be executed next. Depending upon how a group of Steps is configured, certain steps may not even be processed at all. Sequential Flow(顺序的Step Flow) The simplest flow scenario is a job where

python爬取 “得到” App 电子书信息

若如初见. 提交于 2019-12-05 23:17:07
前言 文的文字及图片来源于网络,仅供学习、交流使用,不具有任何商业用途,版权归原作者所有,如有问题请及时联系我们以作处理。 作者: 静觅 崔庆才 PS:如有需要Python学习资料的小伙伴可以加点击下方链接自行获取 http://note.youdao.com/noteshare?id=3054cce4add8a909e784ad934f956cef mitmdump 爬取 “得到” App 电子书信息 “得到” App 是罗辑思维出品的一款碎片时间学习的 App,App 内有很多学习资源。不过 “得到” App 没有对应的网页版,所以信息必须要通过 App 才可以获取。这次我们通过抓取其 App 来练习 mitmdump 的用法。 爬取目标 我们的爬取目标是 App 内电子书版块的电子书信息,并将信息保存到 MongoDB,如图所示。 我们要把图书的名称、简介、封面、价格爬取下来,不过这次爬取的侧重点还是了解 mitmdump 工具的用法,所以暂不涉及自动化爬取,App 的操作还是手动进行。mitmdump 负责捕捉响应并将数据提取保存。 2. 准备工作 请确保已经正确安装好了 mitmproxy 和 mitmdump,手机和 PC 处于同一个局域网下,同时配置好了 mitmproxy 的 CA 证书,安装好 MongoDB 并运行其服务,安装 PyMongo 库

控制公司 Controlling Companies

南笙酒味 提交于 2019-12-05 22:57:52
\(USACO\) 上 \(CHAPTER 2\) 的题 黄题难度 但我写了一个网络流 看了下题解 只有我是写的网络流 其他好像都是搜索 思想 网络流中进行是否可以増广和増广是 即(我写的 \(dinic\) )DINIC中的 \(BFS\) 和 \(DFS\) 判断是否可以走的时候 改成 if(depth[v = edge[e].v] == -1&&(edge[e].w&&able[tp]))//BFS if(depth[v = edge[e].v] == depth[x] + 1&&(edge[e].w&&able[x]))//DFS 就行了 还有一些要注意的点 各位神仙写的时候很容易想到 对了 我用了 \(set\) 优化 可去重 可排序 为什么不用呢? 时间复杂度 \(O(min(N^{0.67},M^{0.5}) * M*N^2)\) 时间复杂度不比搜索优秀 但练练网络流也挺好的 #include <set> #include <queue> #include <cstdio> #include <vector> #include <cstring> #include <iostream> #include <algorithm> using namespace std; #define reg register int #define isdigit(x) ('0' <

What is the prefered way to save/restore screen state with Flow + Mortar + Dagger2?

情到浓时终转凉″ 提交于 2019-12-05 18:30:25
I'm trying to convert an Acticity + Fragments app to Flow + Mortar + Dagger2 I would like to save & restore screen state when jumping from screen to screen (at least backwards). What is the prefered/recommanded way to do that ? I have spent quite a lot of time looking at flow and mortar readmes and samples but couldn't figure it out (the documentation and samples are minimal and only deal with simple/static/unique data). Say, for example, you have a browser-like app that moves from Page to Page Where each Page use the same same PageView class, the same PagePresenter Class but have different

4COSC001W: Programming Principles

浪尽此生 提交于 2019-12-05 04:49:24
University of Westminster - School of Computer Science & Engineering 4COSC001W: Programming Principles I - Assignment Specification (2019/20) Module leader W Purdy Unit Practical Exercises Weighting: 50% Qualifying mark: 30% Description: Practical Work Learning Outcomes Covered in this Assignment: The coursework rationale is: • LO1 Identify program requirements and select appropriate algorithms to implement them; • LO2 Represent algorithms in a structured manner (e.g., by use of flow diagrams or pseudo-code); • LO3 Implement algorithms using an algorithmic, strongly typed programming language,