Decode the Coding Interview in JavaScript: Real-World Examples/

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

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

Solve the interview question "Insert, Delete, and GetRandom in O(1)" yourself in this lesson.

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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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