dsa-prep — Data Structures & Algorithms roadmap with an in-browser Kotlin judge

dsa-prep

DSA problem roadmap

~ by Trei · DSAPrep web build 2026-10-31

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What is new

14 Oct 2026: a product page now explains what DSAPrep covers and how it works.

Problem statement, hints, editorial and solution

select a problem from the tree

Kotlin editor and sample-test judge

kotlin

stdin

verdict

run to see sample-test verdicts

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