advent-of-code/2025/src/day09-geos.cpp, branch master

advent-of-code/2025/src/day09-geos.cpp, branch master Advent of code solutions https://git.its1.de/public/advent-of-code/atom?h=master 2025-12-12T11:27:51Z aoc 2025, day 9, alternative solution for part 2 using geos (shapely) 2025-12-12T11:27:51Z Thomas Schmucker ts@its1.de 2025-12-12T11:27:51Z urn:sha1:38a11596571d5281a9ba2c197d0e9cbebeb4039d