instruction:
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
question:
[11, 24, 23, 13, 6, 43, 8, 48, 28, 5, 4, 16, 49, 34, 27, 38, 47, 40, 37, 41], target=29
answer:
[23, 6]


question:
[18, 11, 44, 20, 33, 38, 14, 21, 43, 9, 5, 42, 27, 29, 37, 25, 28, 3, 8, 49], target=48
answer:
[43, 5]


question:
[22, 21, 11, 10, 9, 29, 8, 45, 36, 18, 4, 3, 26, 16, 30, 34, 44, 12, 15, 39], target=24
answer:

[21, 3]