Day 6 solution.

.gitignore

@@ -0,0 +1 @@
+**/target/

2022/Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aoc2022"
+version = "0.1.0"
+dependencies = [
+ "sorted-vec",
+]
+
+[[package]]
+name = "sorted-vec"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c6734caf0b6f51addd5eeacca12fb39b2c6c14e8d4f3ac42f3a78955c0467458"

2022/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "aoc2022"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+sorted-vec = "0.8.3"

2022/input/day03.txt

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2022/input/day05.txt

@@ -0,0 +1,512 @@
+                [B] [L]     [J]    
+            [B] [Q] [R]     [D] [T]
+            [G] [H] [H] [M] [N] [F]
+        [J] [N] [D] [F] [J] [H] [B]
+    [Q] [F] [W] [S] [V] [N] [F] [N]
+[W] [N] [H] [M] [L] [B] [R] [T] [Q]
+[L] [T] [C] [R] [R] [J] [W] [Z] [L]
+[S] [J] [S] [T] [T] [M] [D] [B] [H]
+ 1   2   3   4   5   6   7   8   9 
+
+move 5 from 4 to 5
+move 2 from 5 to 8
+move 2 from 9 to 1
+move 2 from 9 to 1
+move 1 from 5 to 3
+move 10 from 5 to 8
+move 1 from 4 to 7
+move 1 from 1 to 2
+move 5 from 3 to 7
+move 1 from 2 to 8
+move 21 from 8 to 5
+move 13 from 5 to 7
+move 2 from 9 to 4
+move 1 from 7 to 4
+move 5 from 1 to 4
+move 1 from 5 to 7
+move 2 from 2 to 7
+move 1 from 3 to 2
+move 1 from 1 to 6
+move 7 from 5 to 9
+move 16 from 7 to 4
+move 7 from 9 to 3
+move 1 from 7 to 5
+move 1 from 3 to 8
+move 3 from 2 to 7
+move 1 from 8 to 9
+move 3 from 3 to 6
+move 21 from 4 to 9
+move 1 from 5 to 7
+move 4 from 4 to 9
+move 8 from 6 to 3
+move 6 from 7 to 1
+move 12 from 9 to 8
+move 6 from 7 to 2
+move 3 from 6 to 5
+move 1 from 6 to 9
+move 4 from 8 to 6
+move 3 from 8 to 5
+move 4 from 1 to 8
+move 4 from 6 to 1
+move 2 from 1 to 3
+move 1 from 5 to 8
+move 2 from 2 to 8
+move 5 from 8 to 3
+move 4 from 2 to 7
+move 5 from 8 to 1
+move 2 from 1 to 7
+move 1 from 8 to 2
+move 2 from 1 to 7
+move 11 from 9 to 2
+move 1 from 8 to 5
+move 2 from 9 to 4
+move 3 from 9 to 5
+move 2 from 5 to 1
+move 6 from 5 to 8
+move 2 from 4 to 2
+move 1 from 5 to 6
+move 7 from 1 to 8
+move 2 from 2 to 7
+move 13 from 8 to 1
+move 16 from 3 to 1
+move 3 from 2 to 1
+move 12 from 7 to 6
+move 15 from 1 to 8
+move 2 from 3 to 8
+move 16 from 1 to 2
+move 24 from 2 to 8
+move 1 from 1 to 5
+move 1 from 5 to 8
+move 3 from 6 to 7
+move 26 from 8 to 3
+move 20 from 3 to 9
+move 1 from 2 to 9
+move 16 from 9 to 3
+move 14 from 3 to 1
+move 13 from 1 to 6
+move 3 from 3 to 4
+move 3 from 9 to 4
+move 1 from 7 to 8
+move 5 from 8 to 2
+move 8 from 8 to 5
+move 18 from 6 to 1
+move 4 from 8 to 5
+move 6 from 4 to 1
+move 2 from 2 to 5
+move 5 from 3 to 8
+move 5 from 8 to 7
+move 2 from 5 to 8
+move 5 from 5 to 4
+move 3 from 2 to 8
+move 22 from 1 to 2
+move 1 from 1 to 2
+move 5 from 8 to 2
+move 2 from 5 to 2
+move 1 from 1 to 6
+move 5 from 5 to 2
+move 1 from 9 to 8
+move 5 from 4 to 1
+move 6 from 6 to 9
+move 3 from 1 to 9
+move 1 from 1 to 7
+move 8 from 9 to 6
+move 6 from 7 to 1
+move 5 from 6 to 5
+move 27 from 2 to 1
+move 4 from 5 to 7
+move 9 from 1 to 5
+move 1 from 9 to 1
+move 3 from 6 to 2
+move 9 from 2 to 1
+move 2 from 7 to 2
+move 1 from 8 to 7
+move 10 from 5 to 9
+move 1 from 9 to 7
+move 25 from 1 to 8
+move 6 from 7 to 4
+move 11 from 1 to 7
+move 3 from 8 to 1
+move 3 from 2 to 6
+move 3 from 8 to 9
+move 11 from 8 to 6
+move 1 from 2 to 6
+move 12 from 6 to 4
+move 13 from 4 to 5
+move 1 from 6 to 1
+move 3 from 7 to 5
+move 5 from 8 to 7
+move 1 from 7 to 1
+move 5 from 1 to 6
+move 3 from 6 to 4
+move 3 from 8 to 6
+move 2 from 5 to 2
+move 12 from 5 to 9
+move 5 from 6 to 2
+move 2 from 5 to 9
+move 6 from 4 to 9
+move 11 from 7 to 3
+move 1 from 2 to 5
+move 1 from 7 to 8
+move 1 from 5 to 7
+move 1 from 7 to 1
+move 1 from 8 to 1
+move 2 from 4 to 7
+move 2 from 6 to 8
+move 5 from 3 to 6
+move 2 from 7 to 2
+move 2 from 2 to 9
+move 1 from 2 to 9
+move 1 from 1 to 6
+move 35 from 9 to 7
+move 2 from 8 to 7
+move 3 from 3 to 8
+move 5 from 2 to 4
+move 3 from 3 to 7
+move 2 from 4 to 7
+move 4 from 6 to 5
+move 4 from 5 to 9
+move 3 from 4 to 5
+move 1 from 8 to 3
+move 4 from 9 to 8
+move 1 from 9 to 6
+move 38 from 7 to 2
+move 1 from 3 to 5
+move 1 from 1 to 7
+move 4 from 7 to 3
+move 3 from 6 to 1
+move 22 from 2 to 7
+move 1 from 5 to 8
+move 7 from 8 to 4
+move 8 from 2 to 8
+move 3 from 5 to 1
+move 4 from 3 to 9
+move 1 from 8 to 3
+move 1 from 3 to 7
+move 2 from 2 to 3
+move 5 from 8 to 9
+move 3 from 9 to 1
+move 2 from 1 to 7
+move 6 from 2 to 3
+move 6 from 3 to 1
+move 2 from 3 to 6
+move 1 from 6 to 1
+move 14 from 7 to 2
+move 4 from 1 to 6
+move 8 from 1 to 3
+move 4 from 3 to 6
+move 3 from 9 to 5
+move 1 from 8 to 6
+move 1 from 8 to 4
+move 9 from 7 to 1
+move 8 from 2 to 4
+move 4 from 2 to 9
+move 2 from 2 to 1
+move 3 from 5 to 8
+move 1 from 8 to 6
+move 1 from 7 to 8
+move 1 from 6 to 5
+move 3 from 9 to 5
+move 2 from 9 to 5
+move 4 from 3 to 9
+move 3 from 6 to 3
+move 3 from 6 to 9
+move 9 from 4 to 1
+move 1 from 9 to 8
+move 3 from 3 to 6
+move 2 from 7 to 4
+move 4 from 8 to 5
+move 7 from 5 to 6
+move 19 from 1 to 9
+move 5 from 9 to 3
+move 2 from 1 to 6
+move 1 from 4 to 6
+move 4 from 3 to 2
+move 21 from 9 to 7
+move 1 from 1 to 2
+move 1 from 9 to 1
+move 1 from 1 to 8
+move 16 from 7 to 6
+move 24 from 6 to 5
+move 7 from 4 to 5
+move 1 from 8 to 3
+move 2 from 2 to 8
+move 31 from 5 to 8
+move 1 from 4 to 6
+move 2 from 6 to 9
+move 1 from 7 to 4
+move 3 from 7 to 9
+move 1 from 4 to 8
+move 2 from 3 to 5
+move 1 from 2 to 3
+move 1 from 3 to 7
+move 1 from 7 to 9
+move 24 from 8 to 6
+move 1 from 8 to 1
+move 30 from 6 to 1
+move 2 from 5 to 2
+move 1 from 6 to 9
+move 6 from 9 to 7
+move 1 from 6 to 4
+move 1 from 4 to 6
+move 23 from 1 to 3
+move 21 from 3 to 4
+move 4 from 2 to 6
+move 3 from 6 to 1
+move 1 from 5 to 1
+move 4 from 1 to 9
+move 3 from 9 to 6
+move 8 from 1 to 6
+move 4 from 8 to 5
+move 2 from 7 to 5
+move 7 from 4 to 3
+move 3 from 4 to 9
+move 9 from 3 to 9
+move 1 from 7 to 6
+move 6 from 5 to 8
+move 14 from 6 to 2
+move 4 from 8 to 4
+move 7 from 4 to 5
+move 1 from 7 to 9
+move 6 from 4 to 3
+move 13 from 2 to 6
+move 5 from 3 to 7
+move 1 from 3 to 8
+move 1 from 8 to 2
+move 4 from 8 to 3
+move 6 from 6 to 4
+move 2 from 2 to 8
+move 5 from 4 to 7
+move 3 from 7 to 5
+move 1 from 7 to 9
+move 2 from 3 to 9
+move 3 from 7 to 3
+move 1 from 7 to 9
+move 1 from 7 to 9
+move 3 from 4 to 1
+move 6 from 6 to 1
+move 2 from 7 to 5
+move 1 from 3 to 5
+move 11 from 9 to 4
+move 9 from 4 to 5
+move 3 from 3 to 4
+move 1 from 3 to 9
+move 2 from 8 to 1
+move 9 from 1 to 8
+move 22 from 5 to 8
+move 2 from 1 to 3
+move 3 from 4 to 6
+move 14 from 8 to 9
+move 1 from 3 to 9
+move 19 from 9 to 3
+move 3 from 9 to 4
+move 2 from 7 to 2
+move 1 from 4 to 6
+move 1 from 3 to 8
+move 8 from 3 to 1
+move 2 from 9 to 6
+move 1 from 2 to 5
+move 3 from 4 to 9
+move 1 from 2 to 3
+move 20 from 8 to 3
+move 4 from 9 to 5
+move 1 from 4 to 2
+move 26 from 3 to 5
+move 1 from 8 to 3
+move 8 from 1 to 4
+move 1 from 3 to 7
+move 1 from 2 to 1
+move 1 from 1 to 6
+move 1 from 6 to 7
+move 4 from 5 to 3
+move 3 from 4 to 2
+move 5 from 5 to 3
+move 2 from 2 to 6
+move 3 from 3 to 5
+move 2 from 4 to 8
+move 5 from 3 to 9
+move 5 from 9 to 8
+move 19 from 5 to 9
+move 1 from 5 to 2
+move 2 from 7 to 1
+move 1 from 1 to 7
+move 1 from 7 to 4
+move 13 from 9 to 3
+move 8 from 6 to 2
+move 10 from 3 to 5
+move 14 from 5 to 4
+move 7 from 8 to 4
+move 1 from 6 to 2
+move 6 from 3 to 8
+move 4 from 9 to 7
+move 2 from 9 to 8
+move 1 from 7 to 1
+move 3 from 2 to 7
+move 1 from 5 to 3
+move 7 from 8 to 6
+move 5 from 6 to 2
+move 8 from 4 to 5
+move 3 from 5 to 8
+move 3 from 8 to 6
+move 5 from 7 to 9
+move 5 from 3 to 6
+move 1 from 9 to 4
+move 17 from 4 to 7
+move 1 from 8 to 1
+move 12 from 7 to 8
+move 3 from 1 to 4
+move 2 from 4 to 6
+move 8 from 6 to 1
+move 4 from 6 to 3
+move 1 from 7 to 8
+move 5 from 5 to 8
+move 4 from 7 to 1
+move 3 from 2 to 6
+move 2 from 5 to 1
+move 6 from 1 to 6
+move 4 from 3 to 5
+move 4 from 5 to 3
+move 1 from 4 to 8
+move 3 from 3 to 2
+move 17 from 8 to 4
+move 6 from 6 to 3
+move 14 from 4 to 9
+move 1 from 3 to 8
+move 1 from 7 to 4
+move 3 from 8 to 3
+move 5 from 2 to 5
+move 6 from 1 to 7
+move 2 from 6 to 4
+move 4 from 5 to 7
+move 1 from 1 to 5
+move 1 from 6 to 3
+move 10 from 7 to 4
+move 1 from 5 to 4
+move 1 from 2 to 3
+move 15 from 4 to 5
+move 3 from 3 to 1
+move 6 from 2 to 6
+move 1 from 2 to 3
+move 2 from 4 to 7
+move 2 from 7 to 8
+move 1 from 4 to 2
+move 2 from 1 to 7
+move 1 from 7 to 2
+move 12 from 9 to 1
+move 4 from 9 to 5
+move 4 from 6 to 2
+move 1 from 7 to 3
+move 6 from 2 to 4
+move 1 from 8 to 5
+move 2 from 4 to 2
+move 11 from 1 to 7
+move 3 from 1 to 4
+move 17 from 5 to 6
+move 15 from 6 to 4
+move 1 from 8 to 9
+move 10 from 4 to 1
+move 1 from 3 to 9
+move 2 from 6 to 5
+move 1 from 2 to 6
+move 4 from 5 to 6
+move 4 from 1 to 2
+move 6 from 6 to 7
+move 2 from 2 to 6
+move 9 from 4 to 9
+move 6 from 1 to 2
+move 3 from 4 to 1
+move 10 from 9 to 8
+move 4 from 2 to 1
+move 1 from 1 to 2
+move 5 from 8 to 6
+move 1 from 2 to 7
+move 1 from 9 to 4
+move 2 from 6 to 9
+move 13 from 7 to 2
+move 5 from 7 to 5
+move 2 from 5 to 2
+move 1 from 4 to 5
+move 4 from 8 to 4
+move 17 from 2 to 6
+move 3 from 4 to 6
+move 2 from 9 to 1
+move 7 from 6 to 8
+move 1 from 5 to 2
+move 1 from 4 to 1
+move 2 from 9 to 4
+move 1 from 3 to 9
+move 4 from 3 to 7
+move 2 from 8 to 5
+move 3 from 7 to 5
+move 10 from 5 to 8
+move 2 from 2 to 4
+move 6 from 1 to 2
+move 4 from 6 to 3
+move 8 from 2 to 6
+move 1 from 7 to 4
+move 5 from 4 to 5
+move 7 from 6 to 7
+move 5 from 3 to 5
+move 5 from 5 to 2
+move 4 from 8 to 1
+move 6 from 1 to 6
+move 3 from 3 to 2
+move 22 from 6 to 2
+move 1 from 9 to 7
+move 8 from 8 to 6
+move 1 from 7 to 6
+move 2 from 5 to 7
+move 4 from 8 to 5
+move 7 from 6 to 7
+move 2 from 6 to 4
+move 14 from 2 to 1
+move 7 from 1 to 3
+move 12 from 7 to 3
+move 1 from 4 to 3
+move 2 from 5 to 8
+move 2 from 8 to 1
+move 1 from 4 to 3
+move 6 from 2 to 9
+move 6 from 9 to 2
+move 2 from 2 to 7
+move 6 from 7 to 5
+move 13 from 3 to 5
+move 5 from 2 to 6
+move 5 from 6 to 1
+move 2 from 3 to 6
+move 1 from 6 to 5
+move 1 from 6 to 1
+move 3 from 1 to 9
+move 6 from 2 to 7
+move 1 from 2 to 3
+move 24 from 5 to 2
+move 7 from 3 to 7
+move 13 from 7 to 9
+move 4 from 1 to 9
+move 4 from 1 to 6
+move 1 from 5 to 6
+move 16 from 9 to 5
+move 1 from 6 to 4
+move 1 from 5 to 2
+move 5 from 1 to 3
+move 11 from 2 to 1
+move 4 from 9 to 6
+move 1 from 4 to 7
+move 2 from 3 to 4
+move 6 from 6 to 9
+move 1 from 1 to 3
+move 2 from 9 to 4
+move 1 from 7 to 9
+move 4 from 2 to 9
+move 8 from 9 to 2
+move 3 from 3 to 2
+move 1 from 9 to 4
+move 5 from 1 to 7
+move 1 from 4 to 8
+move 2 from 1 to 9
+move 1 from 8 to 7
+move 6 from 5 to 3
+move 1 from 5 to 1
+move 5 from 2 to 3
+move 4 from 1 to 5
+move 4 from 7 to 1
+move 8 from 5 to 8

2022/input/day06.txt

@@ -0,0 +1 @@
+rnttlvtttmnmpmhpmmzvmmhpmmnrntnnsnrnndvnddmbbtptssjcczmmbwmbmwwmmflfggwzzhjjgppwrwdwqwbbbmwbwgggqccmlmdmgdgqgpqgpgzzndddgdbbsvvfsfppwjwzjjcnjccwrwrprgppbpddnccjggfrggqngqgdqgddvsshqhmqqfvqvlvwvnwwmccrpcczvcczzgsgwwlggqsggmdgglblpblltbbzrbzzcscgccwssbddsmddzzvvhjjwjwrjwrwfftmttplldnllqttdhddmvdmmhsmsmqsqwqpqbpqppqdppbnpnhhppjbbrzrbrggdbddnrdrzrdrpdppzzfzrzgzllwlwzlllwtltslttlmtmqqbbzmzhmmjjwrjrrnzrzhzmmtbbrppmmfddjhdjdsdllrbbpfphpzpwwjvwwdpwpzwwzrrfnfwwfbbpttzjtjptpvvsfvvljjrzzmdmsddpvpgvvdcdwcwhwghwggrjjhdjhddzhhwbhwbwwbrwwrfrmfrfvrfftzzqrzqrqtrqtrqtrqttgctclcwlwwvqqnlnqlnnndmnmggznzhzqzggzrzbbrwbrwrvvscvvmvhmvvbsbjsjfjpfpqpbbbbjtjptpprnndpnnrsswffmnnjhhpqhqwhhbwhbhgbbfrbrjjpmjmzzdzjdjffcvvtwttrrcscvcncqcfcwwpgpfptpcpspllcfcssgbglgdllcdcmcpcqclctcvtvvbhbbdhhczhzshzhbhchzchchlcllwswqqmpmbbqwwzgzhggczgzffsgggjjlcjjpnjjfqjfjvfvrfrlrvvpfpcfcbffnmfmbmbgggplldblddvcvjcvvmbmmmrvrvvnhhqttgdgvdgdqgddcsclljplpbbsvbsbfsffshsgslsllzztggttfccctwtswwrvwvnnfbnnvjnvvlgvvfppmvpmmvpmmcttjffgsffcllncntcncfclcgcppvdvpvrvbrrnnvrvhrvrzvrvnrvrdrnrqrnngsshqhcqqbfqqzmmmzjzqztznttjffqzfqfbqqsggclgclcddtqqdppbjppqvpqvvmqmqnqcnqcqcqvqjqzqbzzbrrgfgddgtgnnpjjbzjjbbtstzszwswggfffmnnpllfvvnwnpwpqwqwlllqlmmzcmcrcmrcmrcrffnrnssjjrdjjwwqgwqgqdggwzwjzzbfbpptctchthbbbqsqggrllldwdffvwwlrwwljwjnncmmjmvjmmqnnmrrgjgvvpqqbppqlpqllqnqdndwwlppcjcdjjcnnmddffgjjrwjrwjjhvhqvhhfssrtsrsgrrwjwhhbqqpzzrdrhrqhrqrprqqmllsszhzllcdllpmpbbmsmjjmwmssvlslwwmtwmmgvgcvggzcgzgddsjsjfsssftfcchhfmfcmcpcpvcppqggjddljjbttwrrhghqggpghgngzngznnzqnnssqlqmqbmmmqdqqhttnqqjhhphrhccbggmjjpwpbwpprdrvvjzvvtctzzmpphwpwdpdvvhbvvdvsdsjdjbdjdljjstswttnhhbfffmnngddlglqggvzvlzvzqqvbqbvbjbnjjsvjjwpjjzshrdtrjttvqnbltrfpvnztrwzrtgjpzgqdjfglqgjrgdzbhqpghdbfhlfjhbfjfjppfgljmgwljlsbmltgztthnzvdrgqlgddvqhzctdgcphfqvnpjjgzwqfvnhvzdrwtpgfdjpqnfshslqmplcprdntnhqqbqptwzvdddhcjcqrfhjqnjvpnhttblwgjwlfwntdchgfjmdbgtqtdgnzbqwzzcltwtmtqtdbvjtfvlzpcvgmrfqwfhwqmhvwhftzgmhshffnjwqbvztszsrrglqvhfpqmbnqjsfnwdwgdtmztbvqrmztfctmvptbwnfzfgdztjgnqsrsqqqnrpgzsqszzwwwgqnnnrdzhzdbqjgbvncprzcjqchzfgnclbrmphbsdwwpvwjwlbshhgjfbhjjtdqrmrcjfnrrhqrpsbglthzpvfglqspttdpwlljhnlrjpzchbrqcgtmcscjnwvpztfjdcwbnbgmbpgdthgnhbrtwftnscbsrndghbslflpcpjwbcjnhzcwdcslmzqbtrlnzmntlpjcsctnsqwtbffqlhfgcsflvfwnmczvsbflnnnzpfjfrcwhhcbtbjcbghtcwcgdbrwrgfgvpwtcwlwcmnmrtcrjbwtwlrfstztsghfvrfjzzpswpqfqpvqstvbhqfjlgmtdlhqrhwzqpnqpllnlgzwptbgftmblqcwfcllbwfzdhrndfrvdvwzqvhnghlzvhldnnvrgqvlpfdnpmcgddjmstzsqfvzwftflrwtzqwjbbqhjpfbdztdfsgsztvvrvslgspgpdcmwszdfsddqhpzpsjgqmgzqvhchlgrmcmzwzbtwfphvgcdmhfdczhffgmqpncdjszzgwfvwsqddvbcgngbjwhmphjsmjthvbthhfwdtqmjctcmdpqpsdrnrzdgzgzctbhwsgvtjgwjbsnnjmpmqgwrnqfqbpnrpddjsrsvmcshhthwfrwmqsrjhlsrgfzvwmdzhwrvchppqldghgzflrnwqnvntmtdwmrpgbdbzvcmnqstzntvllcgzsnvrhqzsfncznhgrggmvrmgsqmhbdsjbsqqhzppfcwdrgdvfjdscrvpwtsdmcnczwbbjhvddprwtzfwslcfdcrqfszcgmhtdfvlqzqtvwngzvmmqcrqpzwzhggjnphsrmnctnfhtppglspnvzrsqfgzdfrrwbzbqwvbvbnzgmdrqrnsvdpvlgcmnggsbmbtfwrvdjrtgtgcqscnfpgswgsngdqnnscffdcnlrcpdpcbpzvqcrtjhlwvgnfhhqmprthrtcvcjjwgprqqdwfbgmzlwttjpvcjzfwbdhvngsjpgtqsvbldbcvhjhzbjzblqtqhlnbzzqfcpnzdhbplztcgvzhbgshqbccgwzhftqvtwzbwmnfrsgphhhgtsmwlqhlcchtbtggqwmbdthhmqqjtfdvfpddfdrtfjbpmwtcbfnrhwcnpdqrdtsfdmjfzdwwgnftnwpssgqtlpdbwhnzcnfmppclsswbhcdghpnslwjznqszgdtrnpncsqsnbrplrfwpbnfnvttlzcjtvhzcpzmhfsfzfjlzqqnprpdvwbfthmrswqrcqqwrnwzmgjqqsnqdblssmhngjjvprmqbswtgzzvprwhrgjqshvmwzgrgfmzlgrtzbmdlzncwqdftfsndvdfmmplswdbjtbcbvcvtpjvrqpghczpqvvpqwfbfhllbpvrrfsmsjhqbldcrwvzvcvzfffqvplbfbdbwctbjsljlfwtbcnpsbtpmcqgdvltmztvrcfsprbnvwplwhncgsdnrdmqnmcvpvvrlmlwtgvrnwvzsfctdlcfvtgqmpnbwcbwvfpmqnbjvwffpjtvvgflhrnlngrzhhttdtdbvscftsqtvbrgzfgsjvwhzjcbsqcttlgwmhhvjhwhgmmdtflfdbvnhgcblqmwjfsqnngjqfbvdnsfbgwjfhpgdgvhpbvlrtpcpvhrbtqpbffzcqrvbqwvqmmrcwtnvcgwvsqzvrwdbcnjshbnbftmmvrmjvgfdwbsjvqfdwnnvqqhbmshcrclrwhfhbtnwqvmrrvdwgcwcsrhdbqndsthmrmbjhttjtzmlflbrmhlcgsbdjcjcvwcjffnqrntpflrgfcngpchtrzpnflwjvcgbwtsnjfqsggwmwhdvbzdpjmtwlmrslnjsndjtgjmmwmdgtnfrztppzqvqhbfzqpsdhvsshddlzwcmsndrpqhndsrjnngnmgmzrvchwlqgdnbssbhpbpgwpsrcnbphpslvqplhpgdhmrnwwjmhvnsfjmrfwtvjjrmgptvjffhbgpmfgmgrcjrwqhccssrqjpljbpwcvsfdtmbhzsmsjsgblgpcqszsttfclrjcnsslmngmbmwqfhddbvmbvwmrmvglsl

2022/readme.md

@@ -0,0 +1,5 @@
+## Advent of Code 2022
+
+These problems were actually solved in early 2024 as part of a Rust study group.
+
+For the most part, each day's solution was left "as-is" and feedback from the study group was not incorporated until subsequent days, in an attempt to document my attempt to learn the language.

2022/src/day01.rs

@@ -0,0 +1,42 @@
+use std::io;
+use std::io::prelude::*;
+use std::fs::File;
+use sorted_vec::SortedVec;
+
+fn read_lines(filename: &str) -> io::Result<io::Lines<io::BufReader<File>>> {
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}
+
+fn update_max(max: &mut SortedVec<i32>, current: i32) {
+    if max.is_empty() {
+        max.insert(current);
+        return
+    }
+    if current <= max[0] { return }
+
+    max.insert(current);
+    if max.len() > 3 { max.remove_index(0); }
+}
+
+pub fn execute() -> Result<(), io::Error> {
+    let mut max: SortedVec<i32> = SortedVec::new();
+    let mut current = 0;
+
+    for line in read_lines("input/day01.txt")? {
+        let text = line?;
+        current = match text.parse::<i32>() {
+            Ok(value) => current + value,
+            Err(_) => {
+                update_max(&mut max, current);
+                0
+            },
+        }
+    }
+
+    if let Some(x) = max.iter().last() {
+    println!("Step 1 solution: {x}");
+    }
+    println!("Step 2 solution: {}", max.iter().fold(0i32, |sum, i| sum + (*i as i32)));
+    Ok(())
+}

2022/src/day02.rs

@@ -0,0 +1,58 @@
+use std::io;
+use std::io::prelude::*;
+use std::fs::File;
+
+fn read_lines(filename: &str) -> io::Result<io::Lines<io::BufReader<File>>> {
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}
+
+fn print_step(step: i8, value: u64) {
+    println!("Step {} solution: {}", step, value);
+}
+
+pub fn execute() -> Result<(), io::Error> {
+    let mut score1: u64 = 0;
+    let mut score2: u64 = 0;
+
+    for line in read_lines("input/day02.txt")? {
+        let text = line?;
+        let opp = parse_move(text.chars().nth(0).unwrap());
+
+        score1 += step1(opp, text.chars().nth(2).unwrap());
+        score2 += step2(opp, text.chars().nth(2).unwrap());
+    }
+
+    print_step(1, score1);
+    print_step(2, score2);
+    Ok(())
+}
+
+fn step1(opp: i8, text: char) -> u64 {
+    let me = parse_move(text);
+    return match me - opp {
+        1 | -2 => me + 6,
+        0 => me + 3,
+        -1 | 2 => me,
+        _ => panic!("Received impossible result in a match."),
+    } as u64;
+}
+
+fn step2(opp: i8, text: char) -> u64 {
+    return match text {
+        'X' => ((opp + 4) % 3) + 1,
+        'Y' => opp + 3,
+        'Z' => (opp  % 3) + 7,
+        _ => panic!("Received impossible strategy code."),
+    } as u64;
+}
+
+// Parses the second command in the input incorrectly.
+fn parse_move(x: char) -> i8 {
+    return match x {
+        'A' | 'X' => 1,
+        'B' | 'Y' => 2,
+        'C' | 'Z' => 3,
+        _ => 0,
+    };
+}

2022/src/day03.rs

@@ -0,0 +1,53 @@
+use std::io;
+use std::vec::Vec;
+use std::collections::HashSet;
+
+use crate::utils;
+
+pub fn execute() -> Result<(), io::Error> {
+    let mut score = 0;
+    let mut sacks: Vec<HashSet<u8>> = Vec::new();
+
+    for line in utils::read_lines("input/day03.txt")? {
+        let text = line?;
+        let (text1, text2) = text.split_at(text.len() / 2);
+        let mut pouch1 = HashSet::new();
+        let mut pouch2 = HashSet::new();
+        for i in 0..text1.len() {
+            pouch1.insert(text1.as_bytes()[i]);
+            pouch2.insert(text2.as_bytes()[i]);
+        }
+
+        let intersect: HashSet<_> = pouch1.intersection(&pouch2).cloned().collect();
+        score += get_score(&intersect);
+
+        sacks.push(pouch1.union(&pouch2).cloned().collect());
+    }
+
+    let mut score2 = 0;
+    for group in sacks.chunks(3) {
+        let mut intersect: HashSet<u8> = group[0].intersection(&group[1]).cloned().collect();
+        intersect = intersect.intersection(&group[2]).cloned().collect();
+        score2 += get_score(&intersect);
+    }
+    
+    utils::print_step(1, &score);
+    utils::print_step(2, &score2);
+    Ok(())
+}
+
+fn get_score(intersect: &HashSet<u8>) -> u64 {
+    if intersect.len() > 1 {
+        panic!("More than one overlapping item.");
+    }
+
+    if let Some(item) = intersect.iter().next() {
+        if *item > 0x60 {
+            return (*item - 0x60) as u64;
+        }
+
+        return ((*item - 0x40) + 26) as u64;
+    }
+
+    panic!("No items in intersection.");
+}

2022/src/day04.rs

@@ -0,0 +1,52 @@
+use std::io;
+use std::vec::Vec;
+
+use crate::utils;
+
+struct Assignment {
+    min: u32,
+    max: u32,
+}
+
+pub fn execute() -> Result<(), io::Error> {
+    let mut subsets = 0;
+    let mut overlaps = 0;
+
+    for line in utils::read_lines("input/day04.txt")? {
+        let text = line?;
+        let inputs: Vec<_> = text.split(',').collect();
+        let ass1 = parse_assignment(inputs[0]);
+        let ass2 = parse_assignment(inputs[1]);
+
+        if (ass2.max >= ass1.max && ass2.min <= ass1.min) ||
+           (ass1.max >= ass2.max && ass1.min <= ass2.min) {
+            subsets += 1;
+        }
+
+        if (ass2.max >= ass1.min && ass2.min <= ass1.max) ||
+           (ass1.max >= ass2.min && ass1.min <= ass2.max) {
+            overlaps += 1;
+        }
+    }
+
+    utils::print_step(1, &subsets);
+    utils::print_step(2, &overlaps);
+    Ok(())
+}
+
+fn parse_assignment(input: &str) -> Assignment {
+    let values: Vec<_> = input.split('-').collect();
+
+    let Ok(min) = values[0].parse::<u32>() else {
+        panic!("Min value {} is non-numeric.", values[0])
+    };
+
+    let Ok(max) = values[1].parse::<u32>() else {
+        panic!("Max value {} is non-numeric.", values[1])
+    };
+
+    Assignment {
+        min: min,
+        max: max,
+    }
+}

2022/src/day05.rs

@@ -0,0 +1,63 @@
+use std::io;
+use std::vec::Vec;
+
+use crate::utils;
+
+pub fn execute() -> Result<(), io::Error> {
+    let mut stacks1: [Vec<char>; 9] = Default::default();
+    let mut stacks2: [Vec<char>; 9] = Default::default();
+    
+    for line in utils::read_lines("input/day05.txt")? {
+        let text = line?;
+
+        match text {
+            x if x.contains("[") => {
+                initialize_stacks(&mut stacks1, &x);
+                initialize_stacks(&mut stacks2, &x);
+            },
+            x if x.contains("move") => {
+                move_stacks(&mut stacks1, &x, 1);
+                move_stacks(&mut stacks2, &x, 2);
+            },
+            _ => {},
+        };
+    }
+
+    utils::print_step(1, &stacks1.iter().map(|x| x.last().unwrap()).collect::<String>());
+    utils::print_step(1, &stacks2.iter().map(|x| x.last().unwrap()).collect::<String>());
+    
+    Ok(())
+}
+
+fn initialize_stacks(stacks: &mut [Vec<char>], text: &str) {
+    let mut iter = text.chars();
+    iter.next(); // discard the first value
+    for (i, stack) in iter.step_by(4).zip(stacks) {
+        if i.is_alphabetic() { stack.insert(0, i); }
+    }
+}
+
+fn move_stacks(stacks: &mut [Vec<char>], text: &str, step: u8) {
+    let fields = text.split(' ').collect::<Vec<_>>();
+    let count = fields[1].parse::<usize>().unwrap();
+    let start = fields[3].parse::<usize>().unwrap();
+    let end = fields[5].parse::<usize>().unwrap();
+    let mut crane = vec![];
+
+    for _ in 0..count {
+        let item = stacks[start-1].pop().unwrap();
+        match step {
+            1 => stacks[end-1].push(item),
+            2 => crane.push(item),
+            _ => panic!("Bad step provided to function."),
+        }
+    }
+
+    // if we're doing step 1, we're done
+    if crane.is_empty() { return; }
+
+    // step 2 logic
+    while let Some(item) = crane.pop() {
+        stacks[end-1].push(item);
+    }
+}

2022/src/day06.rs

@@ -0,0 +1,30 @@
+use std::io;
+use std::fs;
+use std::collections::HashSet;
+
+use crate::utils;
+
+pub fn execute() -> Result<(), io::Error> {
+    let data = fs::read_to_string("input/day06.txt")?;
+
+    let packet_marker = find_uniq_index(&data, 4);
+    let message_marker = find_uniq_index(&data, 14);
+
+    utils::print_step(1, &packet_marker);
+    utils::print_step(2, &message_marker);
+
+    Ok(())
+}
+
+// Returns the (1-indexed) position where the first sequence of unique characters of `length`
+// ends in `data`
+fn find_uniq_index(data: &str, length: usize) -> usize {
+    for (i, substr) in data.as_bytes().windows(length).enumerate() {
+        let mut uniq = HashSet::new();
+        if substr.iter().all(|x| uniq.insert(x)) {
+            return i+length;
+        }
+    }
+
+    panic!("No unique string of length '{length}' found.")
+}

2022/src/main.rs

@@ -0,0 +1,74 @@
+use std::env;
+use std::io;
+mod utils;
+
+const LATEST: u8 = 6;
+
+mod day01;
+mod day02;
+mod day03;
+mod day04;
+mod day05;
+mod day06;
+// mod day07;
+// mod day08;
+// mod day09;
+// mod day10;
+// mod day11;
+// mod day12;
+// mod day13;
+// mod day14;
+// mod day15;
+// mod day16;
+// mod day17;
+// mod day18;
+// mod day19;
+// mod day20;
+// mod day21;
+// mod day22;
+// mod day23;
+// mod day24;
+// mod day25;
+
+fn main() -> io::Result<()> {
+    let day = determine_day(LATEST);
+    match day {
+        1 => day01::execute(),
+        2 => day02::execute(),
+        3 => day03::execute(),
+        4 => day04::execute(),
+        5 => day05::execute(),
+        6 => day06::execute(),
+        // 7 => day07::execute(),
+        // 8 => day08::execute(),
+        // 9 => day09::execute(),
+        // 10 => day10::execute(),
+        // 11 => day11::execute(),
+        // 12 => day12::execute(),
+        // 13 => day13::execute(),
+        // 14 => day14::execute(),
+        // 15 => day15::execute(),
+        // 16 => day16::execute(),
+        // 17 => day17::execute(),
+        // 18 => day18::execute(),
+        // 19 => day19::execute(),
+        // 20 => day20::execute(),
+        // 21 => day21::execute(),
+        // 22 => day22::execute(),
+        // 23 => day23::execute(),
+        // 24 => day24::execute(),
+        // 25 => day25::execute(),
+        _ => panic!("Couldn't execute day {day}")
+    }
+}
+
+fn determine_day(latest: u8) -> u8 {
+    let mut day = latest;
+    for arg in env::args() {
+        if let Ok(x) = arg.parse::<u8>() {
+            day = x;
+            break;
+        }
+    }
+    return day;
+}

2022/src/template.rs

@@ -0,0 +1,11 @@
+use std::io;
+
+use crate::utils;
+
+pub fn execute() -> Result<(), io::Error> {
+    for line in utils::read_lines("input/dayXX.txt")? {
+        let text = line?;
+    }
+
+    Ok(())
+}

2022/src/utils.rs

@@ -0,0 +1,14 @@
+use std::io;
+use std::io::prelude::*;
+use std::fs::File;
+use std::fmt::Display;
+
+// Returns the contents of a file as an iterator over strings.
+pub fn read_lines(filename: &str) -> io::Result<impl Iterator<Item = io::Result<String>>> {
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}
+
+pub fn print_step<T: Display>(step: i8, value: &T) {
+    println!("Step {step} solution: {value}");
+}