Problem Solving Using KHelper
Install Competitive Companion extension from chrome web store or mozilla addons.
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Open a problem from Codeforces, e.g. Watermelon
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Click on the Parse Task Competitive Companion button
Based on the KHelper Settings > Preferred Language, it will generate a Solution source.
e.g. Kotlin solution:
or Java solution:
First time for Kotlin, it may ask to Configure Kotlin runtime. Click on Configure and select Java.
Write your solution. KHelper already created a run configuration for you. Just click Run or Debug button to run your solution against sample test case, parsed from online judge.
You can click KHelper tool from the right side tool window. It will show the problem information. From here you can manage your test cases. You can, (1) Edit, (2) Delete, (3) Add New Test, (4) Deselect All Tests, (5) Select All Tests
When you run or debug your solution successfully, it will generate a Main.kt or Main.java file on your output directory. You can submit this Main file directly on online judge. Or you can Copy your solution from KHelper toolbar.