Teacher: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
Teacher: Now, understand the problem? Solve this instance: [30, 4, 39, 18, 25, 36, 43, 22, 13, 23, 8, 19, 49, 3, 27, 35, 28, 1, 20, 37], target=27
Student:
[4, 23]