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: [41, 35, 1, 4, 23, 37, 21, 9, 8, 27, 49, 15, 14, 7, 25, 30, 29, 46, 11, 5], target=89

SOLUTION: []

PROBLEM: [24, 39, 27, 26, 28, 12, 20, 36, 34, 35, 6, 1, 25, 42, 15, 33, 8, 2, 21, 4], target=80

SOLUTION: []

PROBLEM: [2, 35, 38, 29, 34, 36, 4, 19, 33, 27, 14, 32, 5, 45, 1, 11, 17, 10, 25, 15], target=72

SOLUTION:
[38, 34]

