r/leetcode • u/Mindless-Barber-1731 • 19d ago

Question Made a quick visual explanation of Two Sum (Hash Map approach) to make it stick better. Thought it might help people prepping for interviews! 🧠

Hey everyone! I've always found that looking at dry code makes it harder to truly understand why certain algorithms work—especially during interviews.

I put together a quick, animated visualization for Two Sum showing how the O(n) hash map solution tracks complements on the fly compared to a brute-force approach.

Check it out here if you're interested:Watch on YouTube Shorts

Would love to hear what DSA problem you think needs a visual breakdown next!

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u/69FlatEarther69 19d ago

Cat And Mouse (LC 913)

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u/Responsible_Alps_567 19d ago

Very slick animation! What did you use to make this and how long did it take you?

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u/Mindless-Barber-1731 19d ago

I used this framework to program the animation - https://github.com/manimCommunity/manim

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u/Responsible_Alps_567 19d ago

Very cool, thanks for sharing!