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Solution: Lucky Numbers in a Matrix

Understand how to find a lucky number in a matrix by identifying the smallest element in its row that also is the largest in its column. This lesson guides you through a greedy algorithm solution with clear steps and analysis, improving your ability to solve matrix-based coding interview problems effectively.

Statement

Given an m×nm \times n matrix of distinct numbers, return the lucky number in the matrix.

lucky number is an element of the matrix such that it is the smallest element in its row and largest in its column.

Constraints:

  • m= ...