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Grokking the Coding Interview Patterns in Go

Solution: All O`one Data Structure

Explore the design and implementation of the AllOne data structure to track string key frequencies with constant time operations. Understand how hash maps and a doubly linked list are combined to efficiently increment, decrement, and retrieve keys with maximum or minimum counts.

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Statement

Design a data structure that tracks the frequency of string keys and allows for efficient updates and queries.

Implement the AllOne class with these methods:

  • Constructor: Initializes the data structure.

  • inc(String key): Increases the count of the given key by 11 ...