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 Technical Screen rounds at Nextdoor.

What role is this question designed for?

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

Group Photos and Sort Feed Items | Nextdoor Coding Question

Quick Overview

This question evaluates proficiency in list/sequence transformation, detecting consecutive runs, grouping elements, aggregating attributes, and performing stable sorting while preserving relative order.

medium
Nextdoor
Coding & Algorithms
Software Engineer

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