**If you are wondering what’s this thing? Then before continuing, please read this.**

## Problem #1

This problem was recently asked by Google.

Given a list of numbers and a number `k`

, return whether any two numbers from the list add up to `k`

.

For example, given `[10, 15, 3, 7]`

and `k`

of `17`

, return true since `10 + 7`

is `17`

.

Bonus: Can you do this in one pass?

Solve. Discuss. Repeat. Happy Coding!