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:
[30, 23, 17, 7, 48, 3, 47, 46, 6, 33, 14, 36, 44, 41, 35, 40, 5, 15, 49, 22], target=31
answer:
[17, 14]


question:
[20, 21, 23, 47, 16, 6, 40, 45, 44, 17, 9, 33, 25, 39, 35, 27, 34, 13, 37, 10], target=30
answer:
[21, 9]


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

[]


