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: [42, 29, 12, 38, 31, 17, 15, 1, 14, 23, 8, 5, 20, 34, 21, 47, 4, 49, 24, 19], target=30

SOLUTION: [29, 1]

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

SOLUTION: [21, 9]

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]

