# [Leet Code] Lucky numbers in a matric

Leetcode: https://leetcode.com/problems/lucky-numbers-in-a-matrix/

Problem:

Given a `m * 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.

**Example 1:**

**Input:** matrix = [[3,7,8],[9,11,13],[15,16,17]]

**Output:** [15]

**Explanation:** 15 is the only lucky number since it is the minimum in its row and the maximum in its column