Problem 6

Given two unique integer slices a and b, and an integer target value v, create a function to determine whether there is a pair of numbers that add up to the target value v, where one number comes from one array a and the other comes from the second array b. Return true if there is a pair that adds up to the target value and false otherwise.

sumOfTwo([1, 2], [4, 5, 6], 5) // true

sumOfTwo([1, 2], [4, 5, 6], 8) // true

sumOfTwo([1, 2], [4, 5, 6], 3) // false

sumOfTwo([1, 2], [4, 5, 6], 9) // false