EraCode practice

Top-K by Count with a Heap

PythonintermediateMulti-Part

Summary

Quick practice on Python data structures: understand heap behavior and implement a small top-K selection using a heap.

Problem preview

### Goal Return the **k most common words** using a heap. - Input: , - Output: of the top-k words ordered by **highest frequency first** (ties can be any order). - Happy path: assume .

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