How do I practice coding and algorithm questions?

Use PracHub's coding console to write, test, and debug your solutions in Python or JavaScript. View hints, test against sample inputs, and compare with official solutions.

What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at Google.

What role is this question designed for?

This question is commonly asked for Software Engineer candidates at Google during technical interviews.

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Quick Overview

This question tests practical application of hash-based data structures and stream processing to track and rank user activity with deduplication logic. It evaluates competency in handling edge cases, maintaining sorted order under constraints, and extending solutions to support top-K queries and live updates — core skills assessed in software engineering coding interviews.

medium
Google
Coding & Algorithms
Software Engineer

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