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]: [24, 39, 27, 26, 28, 12, 20, 36, 34, 35, 6, 1, 25, 42, 15, 33, 8, 2, 21, 4], target=80
[EX A]: []

[EX Q]: [9, 27, 40, 16, 4, 10, 38, 1, 45, 23, 25, 31, 14, 21, 34, 36, 37, 28, 22, 33], target=18
[EX A]: [4, 14]

[EX Q]: [42, 22, 36, 49, 31, 33, 27, 24, 37, 26, 34, 46, 16, 29, 40, 41, 2, 39, 11, 17], target=88
[EX A]:
[42, 46]