Rotting Oranges

Salesforce Interview Question

Problem Overview

Difficulty: Medium
LeetCode Pattern: BFS

You are given an m x n grid where each cell can have one of three values:

• 0 representing an empty cell,

• 1 representing a fresh orange, or

• 2 representing a rotten orange.

Every minute, any fresh orange that is 4-directionally adjacent to a rotten orange becomes rotten.

Return the minimum number of minutes…