AOC
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Updated
Dec 11, 2025 - Kotlin
Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. People use them as a speed contest, interview prep, company training, university coursework, practice problems, or to challenge each other.
You don’t need a computer science background to participate - just a little programming knowledge and some problem solving skills will get you pretty far. Nor do you need a fancy computer; every problem has a solution that completes in at most 15 seconds on ten-year-old hardware.
AOC
Advent of Code 2015 Java 17
Advent of Code 2015 solutions in Elixir — with tests and AI-generated summaries
My personal solutions for Advent of Code 2015.
Solutions for the puzzles of "Advent of Code 2015" (written in Java).
My solutions for Advent of Code 2015 in Rust
🎄 | Advent of Code 2015 solved in C++
🎄 My take of the "Advent of Code" challenges! :)
Advent of Code solutions in Kotlin
My solutions for Advent of Code 2015, written in Kotlin (in 2021)!
🎄 My code for the Advent of Code 2015 edition
My solutions for AoC2015 in Python
AoC 2015 in C++
Advent of code in Swift
my advent of code solutions
Advent of Code 2015 in C#
Created by Eric Wastl
Released December 2015