How to Solve Rotting Oranges Problem
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Rotting Oranges
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...
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Understanding the Rotting Oranges Problem
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Problem Statement
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 that must elapse until no cell has a fresh orange. If this is impossible, return -1.
Rotting Oranges
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Examples
grid = [[2,1,1],[1,1,0],[0,1,1]]4grid = [[2,1,1],[0,1,1],[1,0,1]]-1The orange in the bottom left corner (row 2, column 0) is never rotten, because rotting only happens 4-directionally.
grid = [[0,2]]0Since there are already no fresh oranges at minute 0, the answer is just 0.
Constraints
m == grid.lengthn == grid[i].length1 <= m, n <= 10grid[i][j] is 0, 1, or 2.How Interview Coder Helps with Leetcode Problems
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