Definition: 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
Input: [25, 16, 9, 26, 12, 36, 17, 5, 34, 2, 48, 3, 46, 49, 20, 10, 38, 27, 45, 21], target=26
Output:
[9, 17]