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

Explore how to build a set data structure in Rust that performs insert, delete, and random access operations in average constant time. Understand the importance of efficient data handling used in coding interviews and real-world scenarios, preparing you to solve similar algorithmic problems confidently.

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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