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DIY: Insert, Delete, and GetRandom in O(1)

Understand how to implement a set data structure with insert, remove, and getRandom methods that operate in average constant time. This lesson helps you apply efficient algorithms to solve real coding interview problems, focusing on operations typically asked in Amazon interview questions using Kotlin.

Problem statement

Implement a set data structure that can perform the following operations:

  • insert(data): This function should insert data into the set (if the set does not contain it already). It should return false if the data already exists in the set. Otherwise,
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