Advent of Code (2020) Day Solution Day 1: Report Repair Code Day 2: Password Philosophy Code Day 3: Toboggan Trajectory Code Day 4: Passport Processing Code Day 5: Binary Boarding Code Day 6: Custom Customs Code Day 7: Handy Haversacks Code Day 8: Handheld Halting Code Day 9: Encoding Error Code Day 10: Adapter Array Code Day 11: Seating System Code Day 12: Rain Risk Code Day 13: Shuttle Search Code Day 14: Docking Data Code Day 15: Rambunctious Recitation Code Day 16: Ticket Translation Code Day 17: Conway Cubes Code Day 18: Operation Order Code Day 19: Monster Messages Code Day 20: Jurassic Jigsaw Code Day 21: Allergen Assessment Code Day 22: Crab Combat Code Day 23: Crab Cups Code Day 24: Lobby Layout Code Day 25: Combo Breaker Code