Step-by-step puzzle explanations, written in Python, for Advent of Code puzzles.https://advent-of-code.xavd.id/https://advent-of-code.xavd.id/writeups/2025/day/3/https://advent-of-code.xavd.id/writeups/2025/day/3/David solves: LobbySat, 31 Jan 2026 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2025/day/2/https://advent-of-code.xavd.id/writeups/2025/day/2/David solves: Gift ShopTue, 27 Jan 2026 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2025/day/1/https://advent-of-code.xavd.id/writeups/2025/day/1/David solves: Secret EntranceMon, 12 Jan 2026 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/16/https://advent-of-code.xavd.id/writeups/2024/day/16/David solves: Reindeer MazeSun, 03 Aug 2025 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/15/https://advent-of-code.xavd.id/writeups/2024/day/15/David solves: Warehouse WoesSat, 15 Feb 2025 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/14/https://advent-of-code.xavd.id/writeups/2024/day/14/David solves: Restroom RedoubtFri, 27 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/13/https://advent-of-code.xavd.id/writeups/2024/day/13/David solves: Claw ContraptionWed, 25 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/12/https://advent-of-code.xavd.id/writeups/2024/day/12/David solves: Garden GroupsMon, 23 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/11/https://advent-of-code.xavd.id/writeups/2024/day/11/David solves: Plutonian PebblesTue, 17 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/10/https://advent-of-code.xavd.id/writeups/2024/day/10/David solves: Hoof ItFri, 13 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/9/https://advent-of-code.xavd.id/writeups/2024/day/9/David solves: Disk FragmenterThu, 12 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/8/https://advent-of-code.xavd.id/writeups/2024/day/8/David solves: Resonant CollinearityMon, 09 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/7/https://advent-of-code.xavd.id/writeups/2024/day/7/David solves: Bridge RepairSat, 07 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/6/https://advent-of-code.xavd.id/writeups/2024/day/6/David solves: Guard GallivantThu, 05 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/5/https://advent-of-code.xavd.id/writeups/2024/day/5/David solves: Print QueueThu, 05 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/4/https://advent-of-code.xavd.id/writeups/2024/day/4/David solves: Ceres SearchWed, 04 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/3/https://advent-of-code.xavd.id/writeups/2024/day/3/David solves: Mull It OverTue, 03 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/2/https://advent-of-code.xavd.id/writeups/2024/day/2/David solves: Red-Nosed ReportsMon, 02 Dec 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2024/day/1/https://advent-of-code.xavd.id/writeups/2024/day/1/David solves: Historian HysteriaSat, 30 Nov 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/25/https://advent-of-code.xavd.id/writeups/2023/day/25/David solves: SnowverloadThu, 14 Nov 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/24/https://advent-of-code.xavd.id/writeups/2023/day/24/David solves: Never Tell Me The OddsSun, 10 Nov 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/23/https://advent-of-code.xavd.id/writeups/2023/day/23/David solves: A Long WalkTue, 29 Oct 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/22/https://advent-of-code.xavd.id/writeups/2023/day/22/David solves: Sand SlabsSat, 24 Aug 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/21/https://advent-of-code.xavd.id/writeups/2023/day/21/David solves: Step CounterWed, 17 Apr 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/20/https://advent-of-code.xavd.id/writeups/2023/day/20/David solves: Pulse PropagationThu, 08 Feb 2024 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/19/https://advent-of-code.xavd.id/writeups/2023/day/19/David solves: AplentyFri, 29 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/18/https://advent-of-code.xavd.id/writeups/2023/day/18/David solves: Lavaduct LagoonMon, 25 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/17/https://advent-of-code.xavd.id/writeups/2023/day/17/David solves: Clumsy CrucibleMon, 25 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/16/https://advent-of-code.xavd.id/writeups/2023/day/16/David solves: The Floor Will Be LavaFri, 22 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/15/https://advent-of-code.xavd.id/writeups/2023/day/15/David solves: Lens LibraryMon, 18 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/14/https://advent-of-code.xavd.id/writeups/2023/day/14/David solves: Parabolic Reflector DishSun, 17 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/13/https://advent-of-code.xavd.id/writeups/2023/day/13/David solves: Point of IncidenceFri, 15 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/12/https://advent-of-code.xavd.id/writeups/2023/day/12/David solves: Hot SpringsFri, 15 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/11/https://advent-of-code.xavd.id/writeups/2023/day/11/David solves: Cosmic ExpansionMon, 11 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/10/https://advent-of-code.xavd.id/writeups/2023/day/10/David solves: Pipe MazeMon, 11 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/9/https://advent-of-code.xavd.id/writeups/2023/day/9/David solves: Mirage MaintenanceSat, 09 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/8/https://advent-of-code.xavd.id/writeups/2023/day/8/David solves: Haunted WastelandSat, 09 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/7/https://advent-of-code.xavd.id/writeups/2023/day/7/David solves: Camel CardsThu, 07 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/6/https://advent-of-code.xavd.id/writeups/2023/day/6/David solves: Wait For ItTue, 05 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/5/https://advent-of-code.xavd.id/writeups/2023/day/5/David solves: If You Give A Seed A FertilizerTue, 05 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/4/https://advent-of-code.xavd.id/writeups/2023/day/4/David solves: ScratchcardsSun, 03 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/3/https://advent-of-code.xavd.id/writeups/2023/day/3/David solves: Gear RatiosSun, 03 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/2/https://advent-of-code.xavd.id/writeups/2023/day/2/David solves: Cube ConundrumFri, 01 Dec 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2023/day/1/https://advent-of-code.xavd.id/writeups/2023/day/1/David solves: Trebuchet?!Thu, 30 Nov 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/25/https://advent-of-code.xavd.id/writeups/2022/day/25/David solves: Full of Hot AirThu, 03 Aug 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/19/https://advent-of-code.xavd.id/writeups/2022/day/19/David solves: Not Enough MineralsMon, 31 Jul 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/24/https://advent-of-code.xavd.id/writeups/2022/day/24/David solves: Blizzard BasinFri, 28 Jul 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/23/https://advent-of-code.xavd.id/writeups/2022/day/23/David solves: Unstable DiffusionTue, 25 Jul 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/22/https://advent-of-code.xavd.id/writeups/2022/day/22/David solves: Monkey MapSun, 16 Apr 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/21/https://advent-of-code.xavd.id/writeups/2022/day/21/David solves: Monkey MathThu, 02 Feb 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/20/https://advent-of-code.xavd.id/writeups/2022/day/20/David solves: Grove Positioning SystemSun, 29 Jan 2023 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/18/https://advent-of-code.xavd.id/writeups/2022/day/18/David solves: Boiling BouldersSat, 31 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/17/https://advent-of-code.xavd.id/writeups/2022/day/17/David solves: Pyroclastic FlowTue, 27 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/16/https://advent-of-code.xavd.id/writeups/2022/day/16/David solves: Proboscidea VolcaniumThu, 22 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/15/https://advent-of-code.xavd.id/writeups/2022/day/15/David solves: Beacon Exclusion ZoneSun, 18 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/14/https://advent-of-code.xavd.id/writeups/2022/day/14/David solves: Regolith ReservoirThu, 15 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/13/https://advent-of-code.xavd.id/writeups/2022/day/13/David solves: Distress SignalTue, 13 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/12/https://advent-of-code.xavd.id/writeups/2022/day/12/David solves: Hill Climbing AlgorithmTue, 13 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/11/https://advent-of-code.xavd.id/writeups/2022/day/11/David solves: Monkey in the MiddleSun, 11 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/10/https://advent-of-code.xavd.id/writeups/2022/day/10/David solves: Cathode-Ray TubeSun, 11 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/9/https://advent-of-code.xavd.id/writeups/2022/day/9/David solves: Rope BridgeSat, 10 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/8/https://advent-of-code.xavd.id/writeups/2022/day/8/David solves: Treetop Tree HouseThu, 08 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/7/https://advent-of-code.xavd.id/writeups/2022/day/7/David solves: No Space Left On DeviceWed, 07 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/6/https://advent-of-code.xavd.id/writeups/2022/day/6/David solves: Tuning TroubleTue, 06 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/5/https://advent-of-code.xavd.id/writeups/2022/day/5/David solves: Supply StacksTue, 06 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/4/https://advent-of-code.xavd.id/writeups/2022/day/4/David solves: Camp CleanupSun, 04 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/3/https://advent-of-code.xavd.id/writeups/2022/day/3/David solves: Rucksack ReorganizationSat, 03 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/2/https://advent-of-code.xavd.id/writeups/2022/day/2/David solves: Rock Paper ScissorsFri, 02 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2022/day/1/https://advent-of-code.xavd.id/writeups/2022/day/1/David solves: Calorie CountingThu, 01 Dec 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/19/https://advent-of-code.xavd.id/writeups/2021/day/19/David solves: Beacon ScannerSun, 06 Mar 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/25/https://advent-of-code.xavd.id/writeups/2021/day/25/David solves: Sea CucumberThu, 03 Mar 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/24/https://advent-of-code.xavd.id/writeups/2021/day/24/David solves: Arithmetic Logic UnitThu, 17 Feb 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/23/https://advent-of-code.xavd.id/writeups/2021/day/23/David solves: AmphipodSat, 22 Jan 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/22/https://advent-of-code.xavd.id/writeups/2021/day/22/David solves: Reactor RebootSun, 02 Jan 2022 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/21/https://advent-of-code.xavd.id/writeups/2021/day/21/David solves: Dirac DiceThu, 30 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/20/https://advent-of-code.xavd.id/writeups/2021/day/20/David solves: Trench MapTue, 28 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/18/https://advent-of-code.xavd.id/writeups/2021/day/18/David solves: SnailfishSun, 26 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/17/https://advent-of-code.xavd.id/writeups/2021/day/17/David solves: Trick ShotWed, 22 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/16/https://advent-of-code.xavd.id/writeups/2021/day/16/David solves: Packet DecoderWed, 22 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/15/https://advent-of-code.xavd.id/writeups/2021/day/15/David solves: ChitonSat, 18 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/14/https://advent-of-code.xavd.id/writeups/2021/day/14/David solves: Extended PolymerizationFri, 17 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/13/https://advent-of-code.xavd.id/writeups/2021/day/13/David solves: Transparent OrigamiMon, 13 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/12/https://advent-of-code.xavd.id/writeups/2021/day/12/David solves: Passage PathingSun, 12 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/11/https://advent-of-code.xavd.id/writeups/2021/day/11/David solves: Dumbo OctopusSat, 11 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/10/https://advent-of-code.xavd.id/writeups/2021/day/10/David solves: Syntax ScoringFri, 10 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/9/https://advent-of-code.xavd.id/writeups/2021/day/9/David solves: Smoke BasinThu, 09 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/8/https://advent-of-code.xavd.id/writeups/2021/day/8/David solves: Seven Segment SearchThu, 09 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/7/https://advent-of-code.xavd.id/writeups/2021/day/7/David solves: The Treachery of WhalesTue, 07 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/6/https://advent-of-code.xavd.id/writeups/2021/day/6/David solves: LanternfishMon, 06 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/5/https://advent-of-code.xavd.id/writeups/2021/day/5/David solves: Hydrothermal VentureSun, 05 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/4/https://advent-of-code.xavd.id/writeups/2021/day/4/David solves: Giant SquidSat, 04 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/3/https://advent-of-code.xavd.id/writeups/2021/day/3/David solves: Binary DiagnosticFri, 03 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/2/https://advent-of-code.xavd.id/writeups/2021/day/2/David solves: Dive!Thu, 02 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2021/day/1/https://advent-of-code.xavd.id/writeups/2021/day/1/David solves: Sonar SweepWed, 01 Dec 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/25/https://advent-of-code.xavd.id/writeups/2020/day/25/David solves: Combo BreakerFri, 08 Jan 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/24/https://advent-of-code.xavd.id/writeups/2020/day/24/David solves: Lobby LayoutWed, 06 Jan 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/23/https://advent-of-code.xavd.id/writeups/2020/day/23/David solves: Crab CupsTue, 05 Jan 2021 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/22/https://advent-of-code.xavd.id/writeups/2020/day/22/David solves: Crab CombatThu, 31 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/21/https://advent-of-code.xavd.id/writeups/2020/day/21/David solves: Allergen AssessmentWed, 30 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/20/https://advent-of-code.xavd.id/writeups/2020/day/20/David solves: Jurassic JigsawTue, 29 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/19/https://advent-of-code.xavd.id/writeups/2020/day/19/David solves: Monster MessagesTue, 22 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/18/https://advent-of-code.xavd.id/writeups/2020/day/18/David solves: Operation OrderMon, 21 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/17/https://advent-of-code.xavd.id/writeups/2020/day/17/David solves: Conway CubesSat, 19 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/16/https://advent-of-code.xavd.id/writeups/2020/day/16/David solves: Ticket TranslationSat, 19 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/15/https://advent-of-code.xavd.id/writeups/2020/day/15/David solves: Rambunctious RecitationThu, 17 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/14/https://advent-of-code.xavd.id/writeups/2020/day/14/David solves: Docking DataTue, 15 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/13/https://advent-of-code.xavd.id/writeups/2020/day/13/David solves: Shuttle SearchTue, 15 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/12/https://advent-of-code.xavd.id/writeups/2020/day/12/David solves: Rain RiskSat, 12 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/11/https://advent-of-code.xavd.id/writeups/2020/day/11/David solves: Seating SystemSat, 12 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/10/https://advent-of-code.xavd.id/writeups/2020/day/10/David solves: Adapter ArrayThu, 10 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/9/https://advent-of-code.xavd.id/writeups/2020/day/9/David solves: Encoding ErrorWed, 09 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/8/https://advent-of-code.xavd.id/writeups/2020/day/8/David solves: Handheld HaltingWed, 09 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/7/https://advent-of-code.xavd.id/writeups/2020/day/7/David solves: Handy HaversacksTue, 08 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/6/https://advent-of-code.xavd.id/writeups/2020/day/6/David solves: Custom CustomsSun, 06 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/5/https://advent-of-code.xavd.id/writeups/2020/day/5/David solves: Binary BoardingSat, 05 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/4/https://advent-of-code.xavd.id/writeups/2020/day/4/David solves: Passport ProcessingFri, 04 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/3/https://advent-of-code.xavd.id/writeups/2020/day/3/David solves: Toboggan TrajectoryThu, 03 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/2/https://advent-of-code.xavd.id/writeups/2020/day/2/David solves: Password PhilosophyWed, 02 Dec 2020 00:00:00 GMThttps://advent-of-code.xavd.id/writeups/2020/day/1/https://advent-of-code.xavd.id/writeups/2020/day/1/David solves: Report RepairTue, 01 Dec 2020 00:00:00 GMT