Rerank Find the first non-consecutive number #233
Description
https://www.codewars.com/kata/58f8a3a27a5c28d92e000144/
https://www.codewars.com/api/v1/code-challenges/58f8a3a27a5c28d92e000144/assessed-ranks
8kyu × 4, 7kyu × 10, 6kyu × 1, but approved at 8kyu.
it's definitely worth 7kyu.