Advent Of Code 2025 Day 5 Part 2. It looks like even reading the description this time is hard. Along with lazy iterators, maps of maps of whatevers, and two gold stars!


Advent Of Code 2025 Day 5 Part 2

Part 2 get the invalid pages, insert them into a new array in valid order, and sum the middle numbers. Advent of code 2025, day 5.

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