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: [11, 30, 12, 43, 28, 31, 17, 13, 46, 7, 34, 39, 2, 32, 27, 19, 22, 38, 14, 49], target=47

SOLUTION: [30, 17]

PROBLEM: [35, 41, 6, 12, 18, 23, 2, 21, 46, 25, 5, 40, 48, 43, 49, 20, 26, 30, 27, 17], target=19

SOLUTION: [2, 17]

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]

