Advent Of Code 2025

These are all of my solutions for every day of Advent Of Code 2025.

To run a specific solution do:

cargo run --bin dayXX_partY

Solution times

Approximate solution times on my PC (Ryzen 7 5800X + 32gb DDR4 RAM), built in release mode with optimizations

Problem	Time
Day 01, Part 1	~30 μs
Day 01, Part 2	~40 μs
Day 02, Part 1	~4 μs
Day 02, Part 2	~46 μs
Day 03, Part 1	~13 μs
Day 03, Part 2	~50 μs
Day 04, Part 1	~200 μs
Day 04, Part 2	~600 μs
Day 05, Part 1	~190 μs
Day 05, Part 2	~50 μs
Day 06, Part 1	~55 μs
Day 06, Part 2	~100 μs
Day 07, Part 1	~100 μs
Day 07, Part 2	~320 μs
Day 08, Part 1	~9 ms
Day 08, Part 2	~11 ms
Day 09, Part 1	~800 μs
Day 09, Part 2	~90 s
Day 10, Part 1	~8 s
Day 10, Part 2	~7 ms
Day 11, Part 1	~120 μs
Day 11, Part 2	~270 μs
Day 12	~150 μs

Total time = ~100 seconds Total time (Excluding Day9 part 2 and Day 10 part 1) = ~30 ms