Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C++

All O`one Data Structure

Explore how to implement the AllOne data structure for tracking string key frequencies with efficient O(1) operations. Understand increment, decrement, and retrieval methods that handle dynamic key counts for optimal performance.

We'll cover the following...

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. If the key is absent, insert it with a count of 11 ...