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What difficulty level is this coding question?

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

What role is this question designed for?

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

Compute reachable cells for a cleaning robot

Quick Overview

This question evaluates understanding of graph traversal, state-space modeling, and scalability when computing reachable cells on a 2D grid under 8-direction movement and variants that allow limited obstacle removal or multiple agents.

medium
Pinterest
Coding & Algorithms
Software Engineer

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