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

[42, 3, 36, 13, 28, 34, 19, 4, 47, 21, 40, 15, 22, 32, 43, 24, 9, 16, 23, 41], target=93
[]

[1, 11, 10, 31, 32, 7, 21, 42, 12, 6, 49, 5, 27, 26, 34, 2, 8, 46, 22, 24], target=14
[12, 2]

[39, 30, 17, 47, 19, 23, 44, 5, 20, 1, 8, 42, 48, 11, 34, 6, 26, 13, 18, 4], target=43

[23, 20]