Advent of Code 2025

My solutions for Advent of Code 2025 in Python.

Progress

Day	Part 1	Part 2
1	⭐ 0.77 ms	⭐ 1.03 ms
2	⭐ 17.7 ms	⭐ 39.2 ms
3	⭐ 1.33 ms	⭐ 2.63 ms
4	⭐ 12.2 ms	⭐ 24.7 ms
5	⭐ 0.41 ms	⭐ 0.11 ms
6	⭐ 2.64 ms	⭐ 2.41 ms
7	⭐ 0.38 ms	⭐ 0.63 ms
8	⭐ 50.4 ms	⭐ 63.4 ms
9	⭐ 18.8 ms	⭐ 165.85 ms
10	⭐ 16.9 ms	⭐ 294.192 ms
11	⭐ 0.23 ms	⭐ 0.96 ms

Running

I recommend using uv to run:

uv run day-1.py

Notes

• Input files are not included per Advent of Code guidelines
• Each solution expects an input file named day-N.input.txt in the same directory
• I complete the problems myself, but use AI to optimize documentation and explore possible improvements in code structure and efficiency.
• I DO NOT recommend copying this code for your own use in Advent of Code, but instead, this can be used as a reference after you have completed the problems yourself.
• If you have any recommendations, feel free to reach me on LinkedIn.

Benchmarking

A simple benchmark utility is included to measure solution performance:

from benchmark import benchmark

benchmark("Part 1", solve_part1, arg1, arg2)
benchmark("Part 1", solve_part1, setup=setup_func, runs=50)

The setup parameter accepts a function that returns args for the solve function, useful for including preprocessing in the timing.