Binary Search Trees(BST): Solving Real-World Problems Efficiently

a must learn data structure

Problem Statement:

You need to find the top K elements in a dynamic dataset where K keeps changing over time.

First Thought: Using a Heap

• If K is fixed, a Min-Heap (priority queue) is a great choice.

• Time Complexity:

  • Insertion: O(log K)

  • Retrieval: O(K log K) (since extracting K elements requires sorting them)

• Issue:

  • If K keeps changing, you need to rebuild the …