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: [29, 45, 46, 47, 44, 4, 21, 34, 13, 42, 5, 10, 12, 27, 11, 16, 23, 43, 33, 1], target=17
Output:
[4, 13]