19-04-2021

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In this blog post, I am going to show you how you can setup Sublime Text editor for a 'Competitive coding' friendly environment!

Sublime Text, while being a lightweight text editor, provides powerful IDE-like features, Python scripting, and the ability to customize every aspect of the editor itself, letting users code. Sublime Text may be downloaded and evaluated for free, however a license must be purchased for continued use. There is currently no enforced time limit for the evaluation. Changelog 3.2.2 (Build 3211). The idea for this book was spurred on after a few blog posts on Sublime Text — my readers loved the tips and were always asking for more! Wait no longer - the 25 chapter book and 20 video package is now available! This book is going to really help you become a better and more productive developer. Sep 25, 2018 Sublime Text is a sophisticated text editor for code, markup and prose. You'll love the slick user interface, extraordinary features and amazing performance. Summarized the theme of it, so those who are looking for cool themes please refer.

We will see how to do the task of writing to stdin and reading from stdout in a single window of Sublime Text!

May 11, 2020 Like Sublime Text, it also comes with limited auto-completion for programming, scripting and markup languages, but unlike Sublime Text, it doesn’t support intelligent code completion or syntax checking. As an open source project that’s licensed under the GNU GPL, Notepad was originally hosted on SourceForge from 2003 to 2010.

Also, you will not have to manually input in the terminal!

1. Install Sublime Text

If you do not have Sublime Text installed in your system, you can download it from here.

2. Create necessary files

Now, we will require 3 basic files:

  • A .cpp file (as I am going to use C++ programming language for writing code). In this example, I will name this file as example.cpp
  • input.txt (file on which we will write stdin)
  • output.txt (file on which C++ program will write stdout)

3. Setting Layout

Now, its time to setup the layout of the Sublme Text window.

Steps:

  1. Open all the files we created in last step, i.e example.cpp, input.txt, output.txt.
  2. Now, in menu bar, select View -> Layout -> Columns: 3 . Alternatively, you can use keyboard shortcut Shift+Alt+3. As a result, window will get partitioned into 3 columns.
  3. Now, we will try to fix input.txt and output.txt in a single column. For this, select View -> Groups -> Max Columns: 2 . As a result, input.txt and output.txt will get stacked in a single column.
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Here is how your Sublime Text Editor window should looks like now:
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4. Writing to stdin and reading from stdout

Now, we will have to write C++ code in such a way that it can read stdin from input.txt and write stdout to output.txt .

Here are the lines we need to add to main function of our C++ code:

What will freopen do?

freopen is used to associate a file with stdin or stdout stream in C++.

Why ONLINE_JUDGE?

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ONLINE_JUDGE is a preprocessor directive on the online judge of most of the competetive coding sites, where it is defined to be true. So, when you submit the code containing above lines, these lines will simply get skipped due to ifndef condition!

You can find the same code for Python and Java here.

5. Running the code

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Now, we are left with the task of running our code.

Once you have written a C++ program and added the lines as stated in Step 4, you need to build your code. You can select any C++ build system for this purpose.

Sublimetext

Just write all the input that you want to pass as stdin in input.txt and build/run your code. And you will obtain the output as stdout in output.txt!

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Reference video

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Here is a reference video which demonstrates the 5 steps as discussed above.