I just love the way Eric Wastl links the story. This time it's about passport processing. Do visit the link to read the story and understand the task better. But at a high-level, you need to understand this - there are two types of documents: North Pole CredentialsPassport The passport scanner machine is slow and facing some problem detecting which passport have … [Read more...] about Advent Of Code 2020 – Day 4 – Passport Processing