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
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Question: [42, 41, 13, 46, 15, 28, 38, 29, 45, 35, 37, 9, 16, 18, 30, 14, 26, 7, 12, 48], target=20

Answer: [13, 7]


Question: [20, 19, 46, 23, 6, 7, 48, 29, 2, 28, 45, 4, 35, 17, 5, 36, 39, 10, 1, 21], target=45

Answer: [28, 17]


Question: [31, 18, 7, 36, 20, 3, 37, 22, 24, 12, 44, 32, 14, 25, 43, 1, 2, 9, 17, 15], target=54

Answer:
[18, 36]