How to Solve Lucky Numbers in a Matrix Problem
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Lucky Numbers in a Matrix
Given an m x n matrix of distinct numbers, return all lucky numbers in the matrix in any order. A lucky number is an element of the matrix such that it is the minimum element in its row and maximum in...
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Understanding the Lucky Numbers in a Matrix Problem
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Problem Statement
Given an m x n matrix of distinct numbers, return all lucky numbers in the matrix in any order. A lucky number is an element of the matrix such that it is the minimum element in its row and maximum in its column.
Lucky Numbers in a Matrix
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Examples
matrix = [[3,7,8],[9,11,13],[15,16,17]][15]15 is the only lucky number since it is the minimum in its row and the maximum in its column.
matrix = [[1,10,4,2],[9,3,8,7],[15,16,17,12]][12]12 is the only lucky number since it is the minimum in its row and the maximum in its column.
matrix = [[7,8],[1,2]][7]7 is the only lucky number since it is the minimum in its row and the maximum in its column.
Constraints
m == mat.lengthn == mat[i].length1 <= n, m <= 501 <= matrix[i][j] <= 105.All elements in the matrix are distinct.How Interview Coder Helps with Leetcode Problems
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