Data Structures & Algorithms using JavaScript
/Expert
Top K Elements
Definition
A classic interview pattern. To find the 'K largest elements' in an array of size N, maintain a Min-Heap of size K. This achieves O(N log K) time, which is better than O(N log N) sorting.
Explain Like I'm New
Instead of sorting a list of 1 million people to find the top 5 tallest, just keep a running list of the current top 5, and replace the shortest one whenever a taller person walks by.
Interactive Coding Challenges
Top K Frequent Elements (using MinHeap logic)
Solution Code
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