Practice Square Coding Question | Real Coding Interviews

Quick Summary

Navigate a binary matrix from a given entrance to locate the closest border cell containing an open space.
Movement is restricted to horizontally or vertically adjacent open cells.
The entrance cell itself is explicitly excluded from being considered an exit.

What This Tests

Common Patterns

BFSGraph Traversal

Hint 1

Hint 2

What Interviewers May Ask Next

Report seen similar question in interview

python

Test Cases

Input

Output

Expected