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

[EX Q]: [35, 38, 44, 37, 28, 18, 9, 6, 42, 7, 15, 45, 43, 24, 22, 21, 23, 2, 39, 19], target=58
[EX A]: [15, 43]

[EX Q]: [25, 1, 39, 40, 29, 49, 22, 43, 42, 38, 48, 2, 46, 15, 16, 12, 34, 3, 27, 30], target=55
[EX A]: [40, 15]

[EX Q]: [32, 39, 17, 25, 9, 37, 12, 18, 7, 43, 38, 34, 5, 8, 1, 46, 24, 35, 15, 3], target=23
[EX A]:
[18, 5]