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 Bytedance.

What role is this question designed for?

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

Shortest Path in a Grid with Limited Obstacle Removal

Quick Overview

This question evaluates a candidate's ability to extend classic breadth-first search into a state-augmented shortest-path problem, where the state includes both grid position and remaining obstacle-removal budget. It tests graph traversal skills, edge-case reasoning, and the ability to recognize when a standard algorithm needs an additional dimension, a pattern frequently used to assess coding and algorithms proficiency at a practical, implementation-level depth.

medium
Bytedance
Coding & Algorithms
Software Engineer