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 Google.

What role is this question designed for?

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

Solve array-sum and city-community problems

Quick Overview

This question evaluates array-processing and grid/graph connectivity skills, covering counting subarrays with a target sum and identifying connected building communities in a grid; it belongs to the Coding & Algorithms domain and involves streaming/online algorithm reasoning as well as grid traversal concepts.

medium
Google
Coding & Algorithms
Software Engineer

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