Week 7 - Got to fail a few times before you succeed.
Day 6: Turns out if you're making yourself an integer indexed hashmap you should just use an array.
Day 6: Arrays in Rust have a great
rotate_leftmethod to shuffle the entries around. It's brilliant.
Day 8: I'm discovering there is no shame in looking up the odd answer. Got to fail a few times before you succeed.
Day 9: I had completely forgotten about
&mut, or mutable references, arguments to functions. Once a colleague mentioned these I was able to turn my iterative solution into a recursive one.
Day 11: Back to recursion and a successful Rust answer with parts borrowed from day 9!
Day 12: This is incredibly hard and I'm now ill. Advent of code may need to wait a while.