Replace Python Lists and Make Your Code Orders of Magnitude Faster!

No fancy libraries and no complicated engineering, just one data structure — hash tables.

Every beginner programmer loves for-loops because of their utility and how easy they are to understand. Similarly, everyone loves arrays. However more often than not, we start using arrays for everything without giving it a second thought. We take classes on data structures but when it comes to practicing what has been learnt, we fall short. It was only until recently that I …

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