TASK 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
PROBLEM: [46, 35, 1, 11, 45, 23, 26, 22, 37, 43, 18, 40, 4, 36, 39, 20, 16, 28, 5, 2], target=58

SOLUTION: [35, 23]

PROBLEM: [36, 45, 2, 14, 44, 41, 4, 18, 15, 17, 46, 30, 29, 6, 11, 48, 40, 43, 25, 27], target=56

SOLUTION: [41, 15]

PROBLEM: [8, 34, 44, 22, 20, 41, 49, 46, 18, 13, 47, 11, 15, 38, 42, 3, 48, 17, 4, 14], target=18

SOLUTION:
[15, 3]