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: [9, 33, 7, 8, 2, 1, 10, 26, 15, 23, 22, 43, 36, 29, 42, 19, 37, 47, 13, 49], target=77

SOLUTION: []

PROBLEM: [19, 4, 24, 14, 6, 18, 42, 5, 47, 16, 8, 28, 30, 32, 49, 3, 35, 9, 33, 27], target=19

SOLUTION: [14, 5]

PROBLEM: [42, 39, 45, 31, 2, 28, 8, 12, 4, 48, 14, 11, 21, 29, 46, 49, 13, 22, 20, 38], target=42

SOLUTION:
[28, 14]