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]: [21, 12, 17, 6, 1, 39, 49, 9, 25, 45, 11, 19, 26, 48, 5, 10, 44, 46, 43, 8], target=16
[EX A]: [11, 5]

[EX Q]: [16, 19, 21, 23, 15, 14, 4, 38, 41, 35, 27, 17, 43, 13, 34, 24, 31, 7, 20, 47], target=58
[EX A]: [23, 35]

[EX Q]: [38, 29, 22, 9, 18, 35, 7, 42, 15, 48, 10, 11, 26, 46, 49, 45, 36, 24, 41, 40], target=11
[EX A]: