Topcoder Java Applet Installation Guide
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Setting up and Using Topcoder Applet (Practice Problems and SRMs) + KawigiEdit Plugin This guide will explain you to do the following : Setting up the Applet 2 Setting up KawigiEdit Plugin 4 Joining an Active SRM 6 Practice Problems in previous SRMs 7 Setting up the Applet ● First you have to have JRE (Java Runtime Environment).You can Download the latest version from here http://java.com/en/download/index.jsp ● Follow this guide to setup the environment for Java. ● Download the Topcoder Applet from here http://topcodr.co/javaarena ● It’s preferred that you move the downloaded file to a folder of its own. Lets call it “Topcoder Applet”. ● Click on the file to Launch The Applet. Java Security Warning! If you get security warning - After installing Java add the Topcoder to exception list: Windows: Control Panel → Java → Security → Exception List OSX: System Preferences → Java → Security → Exception List Linux, UNIX, Solaris, FreeBSD: Open a terminal Execute the following command: /usr/bin/jdk1.8.0_05/bin/ControlPanel Replace /usr/bin/jdk1.8.0_05 by the path of your Java installation. Here is the exception list you have to add: http://topcoder.com http://www.topcoder.com http://arena.topcoder.com https://topcoder.com https://www.topcoder.com https://arena.topcoder.com Once done try opening the Topcoder Applet again ● Enter your TopCoder Handle (username) and Password. ● You should see the following Screen if you logged in correctly Setting up KawigiEdit Plugin This Plugin is very useful and saves a lot of time during contests (SRMs) (Time = Score) Topcoder doesn’t depend on standard IO as (uva-spoj-codeforces), it depends on a function inside a class, this function takes the parameters as the input, and returns the output Luckily, KawigiEdit does most of this for us, choose on your prefered language from above (c++ in our case), and get back to the code area down. We’ll only discuss some of its features and how to Set it up ● Download the plugin : http://topcoder.yajags.com/KawigiEdit_2.1.jar ● It’s preferred that you put the file in the same directory of the Arena (in the “Topcoder Arena” Folder) ● Start the Topcoder Arena applet (if it’s not already running). ● From the Options menu, choose “Editor”.The Editor Preferences dialog should come up. ● Click on the “Add” button. A dialog titled “Enter Plugin Information” should pop up. ● Fill in the fields with the following ○ Name : “KawigiEdit” ○ EntryPoint : “kawigi.KawigiEdit” ● Click On Browse and Navigate to “Topcoder Applet” Folder and Select The KawigiEdit_x.jar file ● Click Ok and return to the Editor Preferences Dialog. ● Check On the Default Box of the KawigiEdit instead of the Default . ● Click Save and Close. ● Congratulations , you have your KawigiEdit. Joining an Active SRM SRMs are scheduled in TopCoder, you can join anyone but you have to register in it before it starts Please register 5 mins before the SRM to make sure you are set To register: ● From the top menu choose Active Contests. ● Select the SRM ● Click On Register When the SRM begins Enter it ● From the top menu choose Active Contests. ● Select the SRM ● Click On Enter The SRM consists of 4 Phases 1. Coding Phase : In this phase you’ll be solving the problems just as mentioned above in the practice 2. Intermission : 5 minutes to take your breath 3. Challenge Phase: You can challenge others code with a test case that you think his code would fail, you get score if the challenge succeeded else you lose score 4. System Testing Phase : Topcoder System will run extra test cases on all participants’ code 5. After the system tests finishes go to Tools > Room Summary to see if your code passed Practice Problems in previous SRMs ● Open the Applet, from the top menu choose practice problems then choose SRMs ● For example we’ll open the SRM 575 Div2 ● Here is what you should see ● Every Room has 3 problems sorted by their difficulty. ● To Open a problem , from the select menu click on the 250 problem for example. ● The Problem will open in a new window ● The problem statement, is composed of ○ Problem Statement ○ Definition (KawigiEdit handles most of it ) ○ Constraints : the limits of the input && || other specifications of the input ○ Examples ● Topcoder doesn’t depend on standard IO as (uva-spoj-codeforces), it depends on a function inside a class, this function takes the parameters as the input, and returns the output ● Luckily, KawigiEdit does most of this for us, choose on your prefered language from above (c++ in our case), and get back to the code area down. ● You’ll find that KawigiEdit made most of the code for you ,all needed #include , the class , the function in it. All you have to do is to solve the problem inside the function and return the result at last. ● If you are done with your solution and want to test it, there are 2 ways, one that involves using g++ , and the other one using Visual Studio or Code::Blocks or any c++ IDE . ● We’ll be using the second one ○ Open Code::Blocks and create an empty c++ project and make a cpp source file ○ Copy The source Code from the KawigiEdit to VS. ○ Back to the KawigiEdit open the Test Code tab. ○ Copy the code in it and add it to the code in VS. ○ Run The program ,and this is how it should look like ● It will run the tests for you and will tell you if you have any problem with any sample test cast. ● The highlighted code,is the code you are going to submit + the includes above. ● Back to the problem window ,to submit your code click submit and you are done ● you may want to compile your code first to make sure you don’t have any errors.
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