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

[Q]: [30, 44, 6, 39, 34, 21, 2, 47, 1, 37, 5, 7, 18, 14, 16, 45, 11, 36, 29, 26], target=19
[A]: [1, 18]


[Q]: [28, 32, 16, 19, 36, 8, 13, 38, 25, 1, 15, 42, 29, 49, 39, 31, 20, 35, 30, 37], target=43
[A]: [28, 15]


[Q]: [21, 7, 19, 49, 46, 37, 29, 9, 10, 31, 24, 4, 22, 3, 14, 12, 36, 17, 26, 44], target=50
[A]:
[21, 29]


