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Advent of Code 2025 Kilo Code - The fastest growing coding agent because it is open #1 on OpenRouter 500k+ Kilo Coders 6 1T tokens per month Try it today!
About - Advent of Code 2025 Advent of Code is an Advent calendar of small programming puzzles for a variety of skill levels that can be solved in any programming language you like People use them as interview prep, company training, university coursework, practice problems, a speed contest, or to challenge each other
Day 1 - Advent of Code 2024 Collect stars by solving puzzles Two puzzles will be made available on each day in the Advent calendar; the second puzzle is unlocked when you complete the first Each puzzle grants one star Good luck! You haven't even left yet and the group of Elvish Senior Historians has already hit a problem: their list of locations to check is currently
Advent of Code 2023 Advent of Code [About] [Events] [Shop] [Log In] sub y {2023} [Calendar] [AoC++] [Sponsors] [Leaderboards] [Stats]
Events - Advent of Code 2024 From here, you can access all of the events (and the corresponding puzzles, leaderboards, stats, etc) ever run on Advent of Code:
Day 1 - Advent of Code 2023 You've been doing this long enough to know that to restore snow operations, you need to check all fifty stars by December 25th Collect stars by solving puzzles Two puzzles will be made available on each day in the Advent calendar; the second puzzle is unlocked when you complete the first Each puzzle grants one star Good luck!
Advent of Code 2025 Our sponsors help make Advent of Code possible: NatWest Group - With over 15,000 technologists we're helping colleagues to achieve more for our customers, through brilliant software engineering
Day 2 - Advent of Code 2024 --- Day 2: Red-Nosed Reports --- Fortunately, the first location The Historians want to search isn't a long walk from the Chief Historian's office While the Red-Nosed Reindeer nuclear fusion fission plant appears to contain no sign of the Chief Historian, the engineers there run up to you as soon as they see you Apparently, they still talk about the time Rudolph was saved through molecular