Definition: You are given a list of integers and an integer target, return a list of a pair of numbers in any order such that they add up to target. If there is no such pair of numbers, then return an empty list
Input: [11, 47, 22, 28, 19, 13, 25, 9, 29, 26, 3, 27, 18, 12, 2, 30, 38, 41, 24, 6], target=91
Output:
[]