Add Day 7 solution

README.md

@@ -2,7 +2,7 @@
 
 ## About
 
-These are my solutions to the Advent of Code 2022.
+These are my solutions to the Advent of Code 2022. This year I'm attempting to code the solutions in Rust to punish myself. I still dislike Rust.
 
 ## Author
 

rust/.gitignore

@@ -0,0 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

rust/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]
+regex = "1"

rust/make.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+DIR="$(dirname "$0")"
+
+if cargo "$@"; then
+    [ -d "$DIR/target/debug" ] && cp -r "$DIR/resources" "$DIR/target/debug/resources"
+    [ -d "$DIR/target/release" ] && cp -r "$DIR/resources" "$DIR/target/release/resources"
+fi

rust/resources/day3input.txt

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rust/resources/day5exampleinput.txt

@@ -0,0 +1,9 @@
+    [D]
+[N] [C]
+[Z] [M] [P]
+ 1   2   3
+
+move 1 from 2 to 1
+move 3 from 1 to 3
+move 2 from 2 to 1
+move 1 from 1 to 2

rust/resources/day5input.txt

@@ -0,0 +1,512 @@
+        [Q] [B]         [H]        
+    [F] [W] [D] [Q]     [S]        
+    [D] [C] [N] [S] [G] [F]        
+    [R] [D] [L] [C] [N] [Q]     [R]
+[V] [W] [L] [M] [P] [S] [M]     [M]
+[J] [B] [F] [P] [B] [B] [P] [F] [F]
+[B] [V] [G] [J] [N] [D] [B] [L] [V]
+[D] [P] [R] [W] [H] [R] [Z] [W] [S]
+ 1   2   3   4   5   6   7   8   9 
+
+move 1 from 4 to 1
+move 2 from 4 to 8
+move 5 from 9 to 6
+move 1 from 1 to 3
+move 5 from 8 to 3
+move 1 from 1 to 5
+move 4 from 3 to 6
+move 14 from 6 to 2
+move 5 from 4 to 5
+move 7 from 7 to 2
+move 24 from 2 to 3
+move 13 from 3 to 2
+move 1 from 7 to 9
+move 1 from 9 to 5
+move 7 from 2 to 6
+move 3 from 1 to 7
+move 3 from 6 to 3
+move 2 from 7 to 1
+move 1 from 7 to 5
+move 2 from 2 to 6
+move 2 from 1 to 4
+move 9 from 5 to 1
+move 1 from 6 to 3
+move 4 from 5 to 4
+move 1 from 2 to 7
+move 4 from 6 to 2
+move 7 from 2 to 3
+move 2 from 2 to 6
+move 2 from 2 to 3
+move 2 from 5 to 4
+move 1 from 7 to 3
+move 4 from 6 to 7
+move 19 from 3 to 6
+move 3 from 7 to 4
+move 1 from 7 to 8
+move 1 from 8 to 1
+move 2 from 1 to 3
+move 10 from 3 to 2
+move 3 from 3 to 8
+move 1 from 3 to 9
+move 1 from 9 to 6
+move 11 from 6 to 8
+move 2 from 3 to 8
+move 6 from 4 to 3
+move 3 from 4 to 1
+move 7 from 2 to 8
+move 1 from 3 to 6
+move 6 from 8 to 5
+move 1 from 4 to 6
+move 9 from 6 to 9
+move 6 from 3 to 8
+move 1 from 3 to 5
+move 10 from 1 to 3
+move 11 from 8 to 7
+move 1 from 3 to 5
+move 1 from 1 to 8
+move 5 from 9 to 2
+move 1 from 6 to 3
+move 5 from 3 to 6
+move 1 from 3 to 5
+move 4 from 6 to 4
+move 1 from 5 to 9
+move 6 from 2 to 4
+move 2 from 2 to 9
+move 5 from 5 to 1
+move 2 from 1 to 7
+move 10 from 8 to 3
+move 1 from 8 to 6
+move 3 from 6 to 3
+move 6 from 4 to 2
+move 8 from 3 to 8
+move 3 from 4 to 8
+move 4 from 2 to 1
+move 3 from 5 to 3
+move 4 from 7 to 6
+move 2 from 9 to 3
+move 1 from 2 to 9
+move 1 from 2 to 3
+move 2 from 4 to 8
+move 1 from 7 to 9
+move 5 from 7 to 8
+move 2 from 7 to 3
+move 14 from 3 to 2
+move 3 from 9 to 5
+move 1 from 3 to 1
+move 1 from 7 to 4
+move 3 from 9 to 8
+move 7 from 8 to 9
+move 7 from 2 to 5
+move 2 from 3 to 7
+move 2 from 7 to 6
+move 16 from 8 to 9
+move 4 from 6 to 5
+move 1 from 2 to 5
+move 21 from 9 to 5
+move 3 from 9 to 3
+move 6 from 1 to 4
+move 1 from 1 to 9
+move 1 from 1 to 4
+move 2 from 6 to 3
+move 3 from 4 to 6
+move 3 from 4 to 8
+move 1 from 9 to 4
+move 2 from 4 to 6
+move 4 from 3 to 6
+move 1 from 3 to 4
+move 1 from 4 to 9
+move 1 from 9 to 8
+move 1 from 8 to 6
+move 6 from 2 to 1
+move 2 from 8 to 4
+move 6 from 1 to 8
+move 23 from 5 to 9
+move 1 from 4 to 7
+move 1 from 7 to 1
+move 22 from 9 to 7
+move 4 from 8 to 7
+move 1 from 5 to 2
+move 1 from 1 to 9
+move 2 from 8 to 4
+move 6 from 6 to 3
+move 2 from 9 to 5
+move 18 from 7 to 4
+move 18 from 4 to 5
+move 1 from 2 to 7
+move 1 from 8 to 4
+move 6 from 7 to 2
+move 5 from 4 to 5
+move 1 from 3 to 1
+move 1 from 7 to 2
+move 4 from 3 to 4
+move 1 from 3 to 4
+move 1 from 1 to 7
+move 1 from 5 to 8
+move 3 from 4 to 3
+move 3 from 3 to 8
+move 2 from 8 to 3
+move 2 from 4 to 8
+move 2 from 7 to 5
+move 1 from 7 to 9
+move 2 from 3 to 1
+move 1 from 9 to 7
+move 4 from 2 to 3
+move 1 from 8 to 9
+move 2 from 1 to 8
+move 2 from 2 to 4
+move 1 from 9 to 1
+move 4 from 6 to 8
+move 1 from 2 to 7
+move 1 from 4 to 7
+move 4 from 8 to 2
+move 1 from 4 to 3
+move 1 from 1 to 9
+move 4 from 8 to 1
+move 2 from 2 to 1
+move 3 from 3 to 9
+move 2 from 7 to 1
+move 32 from 5 to 1
+move 1 from 8 to 7
+move 6 from 5 to 1
+move 2 from 7 to 6
+move 1 from 9 to 5
+move 1 from 3 to 2
+move 1 from 5 to 9
+move 2 from 6 to 1
+move 1 from 3 to 7
+move 1 from 9 to 8
+move 36 from 1 to 4
+move 1 from 8 to 9
+move 5 from 4 to 9
+move 6 from 9 to 3
+move 2 from 2 to 9
+move 3 from 1 to 9
+move 1 from 3 to 2
+move 30 from 4 to 8
+move 1 from 7 to 5
+move 1 from 3 to 5
+move 3 from 3 to 4
+move 2 from 8 to 5
+move 3 from 9 to 8
+move 3 from 9 to 3
+move 19 from 8 to 6
+move 2 from 3 to 5
+move 3 from 4 to 3
+move 1 from 4 to 7
+move 8 from 1 to 8
+move 1 from 3 to 2
+move 1 from 7 to 6
+move 4 from 5 to 3
+move 1 from 1 to 7
+move 2 from 5 to 4
+move 1 from 9 to 4
+move 12 from 6 to 2
+move 1 from 7 to 8
+move 6 from 2 to 9
+move 3 from 6 to 7
+move 2 from 7 to 5
+move 6 from 2 to 3
+move 8 from 3 to 5
+move 5 from 6 to 8
+move 5 from 3 to 6
+move 1 from 9 to 4
+move 1 from 9 to 8
+move 5 from 5 to 9
+move 3 from 4 to 6
+move 1 from 4 to 9
+move 1 from 7 to 5
+move 1 from 3 to 5
+move 8 from 9 to 2
+move 3 from 9 to 6
+move 27 from 8 to 2
+move 10 from 6 to 9
+move 1 from 6 to 4
+move 1 from 4 to 9
+move 2 from 5 to 6
+move 5 from 5 to 3
+move 2 from 6 to 9
+move 5 from 3 to 2
+move 12 from 9 to 3
+move 5 from 3 to 1
+move 3 from 1 to 5
+move 1 from 9 to 8
+move 1 from 5 to 2
+move 1 from 2 to 1
+move 1 from 1 to 6
+move 1 from 5 to 3
+move 34 from 2 to 4
+move 8 from 3 to 9
+move 1 from 6 to 1
+move 1 from 8 to 5
+move 4 from 2 to 8
+move 3 from 8 to 7
+move 1 from 7 to 2
+move 7 from 9 to 8
+move 1 from 9 to 6
+move 2 from 5 to 1
+move 1 from 6 to 9
+move 1 from 9 to 5
+move 2 from 2 to 5
+move 5 from 8 to 6
+move 2 from 8 to 5
+move 1 from 1 to 3
+move 12 from 4 to 6
+move 2 from 7 to 1
+move 4 from 1 to 6
+move 3 from 2 to 3
+move 1 from 8 to 5
+move 1 from 2 to 6
+move 1 from 1 to 9
+move 1 from 9 to 5
+move 16 from 4 to 1
+move 4 from 3 to 1
+move 8 from 1 to 8
+move 1 from 4 to 1
+move 6 from 5 to 8
+move 1 from 5 to 7
+move 12 from 6 to 9
+move 7 from 1 to 5
+move 2 from 1 to 7
+move 1 from 7 to 1
+move 9 from 9 to 6
+move 15 from 6 to 2
+move 2 from 9 to 7
+move 4 from 4 to 5
+move 2 from 2 to 9
+move 3 from 7 to 5
+move 2 from 1 to 3
+move 1 from 7 to 1
+move 10 from 2 to 3
+move 6 from 8 to 6
+move 3 from 9 to 2
+move 14 from 5 to 6
+move 1 from 8 to 4
+move 5 from 8 to 2
+move 2 from 2 to 3
+move 24 from 6 to 1
+move 3 from 1 to 2
+move 9 from 2 to 9
+move 1 from 4 to 3
+move 1 from 4 to 2
+move 1 from 8 to 4
+move 23 from 1 to 4
+move 3 from 2 to 4
+move 2 from 1 to 2
+move 1 from 8 to 4
+move 3 from 3 to 5
+move 3 from 3 to 4
+move 3 from 5 to 8
+move 3 from 2 to 7
+move 2 from 3 to 8
+move 15 from 4 to 3
+move 2 from 4 to 1
+move 19 from 3 to 9
+move 1 from 7 to 2
+move 1 from 2 to 5
+move 1 from 5 to 4
+move 1 from 7 to 6
+move 1 from 7 to 4
+move 3 from 8 to 3
+move 1 from 8 to 4
+move 5 from 3 to 8
+move 1 from 3 to 6
+move 22 from 9 to 2
+move 17 from 2 to 6
+move 3 from 9 to 3
+move 9 from 4 to 9
+move 6 from 4 to 9
+move 5 from 2 to 6
+move 1 from 4 to 2
+move 1 from 4 to 9
+move 1 from 1 to 6
+move 19 from 9 to 2
+move 4 from 8 to 7
+move 1 from 1 to 5
+move 1 from 5 to 3
+move 1 from 8 to 1
+move 1 from 8 to 2
+move 4 from 3 to 7
+move 12 from 6 to 1
+move 3 from 7 to 3
+move 7 from 2 to 7
+move 9 from 2 to 6
+move 4 from 2 to 6
+move 13 from 1 to 4
+move 8 from 6 to 4
+move 16 from 4 to 8
+move 12 from 7 to 6
+move 3 from 8 to 3
+move 1 from 1 to 2
+move 4 from 3 to 8
+move 5 from 8 to 9
+move 27 from 6 to 8
+move 2 from 3 to 7
+move 2 from 2 to 8
+move 2 from 7 to 5
+move 1 from 5 to 9
+move 1 from 5 to 1
+move 1 from 6 to 9
+move 2 from 6 to 2
+move 2 from 2 to 6
+move 2 from 9 to 2
+move 3 from 4 to 3
+move 1 from 1 to 9
+move 5 from 9 to 8
+move 1 from 9 to 5
+move 2 from 2 to 6
+move 2 from 4 to 6
+move 1 from 3 to 7
+move 1 from 5 to 6
+move 1 from 6 to 7
+move 6 from 6 to 8
+move 2 from 7 to 5
+move 2 from 3 to 2
+move 34 from 8 to 1
+move 1 from 5 to 6
+move 1 from 5 to 3
+move 1 from 6 to 1
+move 32 from 1 to 8
+move 23 from 8 to 4
+move 1 from 2 to 1
+move 24 from 8 to 4
+move 1 from 3 to 6
+move 47 from 4 to 6
+move 2 from 6 to 1
+move 3 from 1 to 5
+move 1 from 2 to 1
+move 3 from 5 to 7
+move 21 from 6 to 2
+move 3 from 7 to 8
+move 2 from 1 to 6
+move 8 from 6 to 4
+move 4 from 8 to 9
+move 3 from 2 to 8
+move 4 from 4 to 2
+move 2 from 2 to 5
+move 4 from 9 to 8
+move 2 from 1 to 5
+move 11 from 6 to 1
+move 14 from 2 to 6
+move 2 from 4 to 3
+move 1 from 2 to 9
+move 3 from 2 to 9
+move 20 from 6 to 5
+move 2 from 4 to 2
+move 4 from 9 to 1
+move 8 from 8 to 9
+move 1 from 6 to 9
+move 14 from 5 to 2
+move 10 from 2 to 7
+move 7 from 9 to 6
+move 1 from 6 to 8
+move 6 from 2 to 6
+move 1 from 2 to 5
+move 1 from 3 to 5
+move 9 from 6 to 3
+move 1 from 5 to 2
+move 9 from 7 to 3
+move 12 from 3 to 2
+move 9 from 5 to 9
+move 1 from 8 to 6
+move 3 from 3 to 5
+move 1 from 7 to 6
+move 14 from 2 to 6
+move 3 from 9 to 7
+move 6 from 1 to 2
+move 5 from 1 to 8
+move 10 from 6 to 9
+move 4 from 5 to 6
+move 3 from 2 to 4
+move 9 from 9 to 7
+move 1 from 8 to 7
+move 3 from 9 to 6
+move 3 from 3 to 7
+move 1 from 5 to 1
+move 15 from 7 to 1
+move 2 from 8 to 5
+move 2 from 5 to 4
+move 1 from 7 to 4
+move 1 from 3 to 1
+move 15 from 6 to 7
+move 2 from 4 to 9
+move 3 from 4 to 7
+move 18 from 1 to 6
+move 1 from 8 to 9
+move 6 from 9 to 7
+move 3 from 6 to 8
+move 1 from 1 to 2
+move 2 from 9 to 5
+move 2 from 2 to 9
+move 16 from 6 to 3
+move 15 from 3 to 7
+move 2 from 8 to 4
+move 1 from 3 to 7
+move 3 from 4 to 9
+move 2 from 1 to 9
+move 26 from 7 to 4
+move 1 from 2 to 1
+move 7 from 9 to 8
+move 1 from 2 to 5
+move 2 from 5 to 2
+move 8 from 7 to 5
+move 1 from 7 to 3
+move 1 from 3 to 9
+move 2 from 2 to 7
+move 1 from 6 to 4
+move 4 from 8 to 9
+move 1 from 1 to 3
+move 1 from 5 to 6
+move 2 from 5 to 7
+move 17 from 4 to 9
+move 6 from 4 to 9
+move 1 from 3 to 4
+move 6 from 7 to 9
+move 3 from 5 to 6
+move 2 from 7 to 9
+move 4 from 8 to 9
+move 4 from 6 to 4
+move 8 from 4 to 6
+move 1 from 8 to 4
+move 3 from 5 to 2
+move 2 from 4 to 3
+move 1 from 7 to 9
+move 2 from 3 to 5
+move 4 from 6 to 9
+move 1 from 6 to 1
+move 36 from 9 to 4
+move 2 from 5 to 3
+move 3 from 2 to 1
+move 3 from 1 to 4
+move 14 from 4 to 1
+move 1 from 8 to 5
+move 4 from 1 to 3
+move 5 from 9 to 5
+move 2 from 5 to 8
+move 1 from 8 to 9
+move 4 from 9 to 6
+move 3 from 5 to 8
+move 1 from 5 to 6
+move 2 from 1 to 6
+move 2 from 9 to 7
+move 6 from 6 to 4
+move 1 from 1 to 3
+move 29 from 4 to 6
+move 7 from 3 to 4
+move 1 from 8 to 9
+move 3 from 1 to 6
+move 4 from 1 to 4
+move 1 from 8 to 4
+move 4 from 4 to 3
+move 15 from 6 to 8
+move 9 from 4 to 9
+move 1 from 7 to 9
+move 8 from 8 to 3
+move 3 from 6 to 7
+move 1 from 1 to 2
+move 4 from 7 to 6
+move 7 from 8 to 5
+move 1 from 8 to 4
+move 2 from 5 to 7
+move 1 from 2 to 4
+move 5 from 6 to 1
+move 4 from 3 to 2

rust/resources/day6input.txt

@@ -0,0 +1 @@
+bgdbdsbsbsttldddzzwnzzmpzmmzmqqcgglrglgbbbtmtddrssjtjqqtrtqtqppcvcddswdwbwlblfljfljlhhpchcfcgfcfwfllfccjlcjllbvbgglccznzrnzzvfzvffvzvccnwnnrtrqtttzmmndnqnvvlwvvgcclplccbggcscqscqcnndwdlwlvlffdssrzrtttbvvqttfdfrddhthbblnlmlmqmhhpvpcpwpccmdddbcbcgctggsstwwbcwwqllchlcccfwccvjcjhhvggnvvcssjwjhhdvdhdcdhdqhhwrwcrwcrrjzjccqhhvnnrppsqqplqqcvczzlpprlrqqvpvwwstwwzqqsnqqsrqrlqlggzztzhhvbbcncwnwhwbbqpbqpqdqsqjqrjrddpjpwwvlwlnwwmpwwnmmzgzqqdcdnnqllghhzwhwwggljjwswgwffsbffbggzfzcfzczpptrrnwrrcqqcwqqdttzqzjzqqltlggwlglgwgrgfgnffgqffnlntlnlccjwjfjnfjnffqvfqfcfsslwswfwvfwfvflfhhntngnhggqbbsggchghfggcmgmsggshsmmqffjpjnngwwftwffgqqvmqqslqslqqdzqzhzbhhdzhhllnzzlmzzltlwwsmswwtswtssvqsqhssfdsdtdjdqqqrffqjffrzrppjpgjjpgpmmzbbrcbbprbpbnpbpcpsspqqfggclcpczzngznzvzlvvcwvwcwdwcddhdbdwdhwhllpjllrmmhbmbgmgmpmhpmpqmpprggvsgvsvbsbbqbmmjdjfddsnnqpnnphppsbpsbpsprpjjqhhvrhvvdhdjhdhwdhhdjjrlrbbzhbbjljhllttrccbdbffznnfmnfnvfvrvbblmltlmmlbmmdqmqnmqqmmhchvcvpccnrccqhccshchshzshschcffpwwbdbqbbjhbhmbhmmzzzcscddbsbnnpzpfzzrfrlrmmzzhshbbtjtbtzbbddrwwhchvhtvvmhvmmwssqqzrzdrdqqntnjnrjrbbgqgzgbzgbzgbzgbbqtbbbqjjgvglvlzlqlbbjwjddjtjbjffcsfsnsnpspgpnnglnngrgqgbqgqtgtfggczzmbbvqqrssdqssgrssdzzvjvccbbgcgppgwwtmwwrnwnfwwnnzmzvvvmnnvdddrmrbrtbrbrvrqqcbbgjgfjfcfttgrrjmrmrttbnnsrnsnzsnzztmtgtjgjljdjtjrtrddtbtjbtjbtthhtmmllngnhgnnhthssgffljlnjllfvlvslvsvwvcvfccgqqtsqtqggbjbtjjtjvjtvtvddttqzqczzcvvdtvthvvfrfmrrclrlflbbhhcllfbbcwwgmwmnmpmgpptnpnjpnjjbqjqjddfdfjjpzzjnnvzzwtwpwfppzhphbbmsbmsbmbqqfpfsscttfrtrzzrznrrrbgbdbtdbdjjsmjmttlbtthbttrprpjppsbsjbjcbclchlhhlttntznnzfnfgnncsncnmmdndnlnclnndqnqssbsjbbrzrtzztszzvnznqqpnpbpnpvnpnhpphvpvfvhhrvhrrpttctjcjvcvzcvcscttqptpffscfsccqhchhdcdczcnzcncnhccfrrbprpbpqppdccjhjvjmjpjmpjjvfvrrwppgjgjjdgdmgdggcpccbrrgssbsjbsjsfscfcvvcrvcrcttbtffpqphpchclccwhcwcbwccbzzlvzvffbrbrbjbwjjqvgtcfnhtjvrcwbfjdbvgtqbvmbtscwzrwdfmwtjvswgrvncmftgmppvlcwjpnpffggrmvgtfqgqmhbhpslfwdfvfmbfndrmgfhdbbtdgvnslzpdfvdttqjpcnbzsjcvrprgrhpglwfwtdcbgdsjhnqjntjnsjcgwccjnvvngfpvqwvnclcsvhmwsrccvbjnnrjspwqdvjpfnfvbsslngzpdgjrcsnqfvdlsqdhdllcndshglztgrrjnptqfvllshmhbgdszvmvqdntpgzdvhstgrppwpdtdqvzsfgqfrgmmjqcsjhvrlmnjvfjghlvwbnqcggpqtrjztfzshnqpzznvlqcmnzvrwqlcbnbpwmljpvdzhbvbgtdjlzflsvzlcqdnsgzfjlccvjclqlzdhqzzrscttjmrvjvcqzvtzqlmsssnfcfmvcgmqjjwdnhtvlqrgdvlbbrffmrpnfsmwwwbnwclrgbfnzlbqvjfqjlfvfnfrhdqstddwnwrmsdnvzwfjfgpwcrfqqzbdwwtzprvqtgvtzbttlhcdczlhvlgrbptztswftvnjmgrnbwpfwnztvqmqbznvnllgjmqrwprvwtnptlbfwbblzsblptwpdwgcvwsbmbrtqfvjsbzfvsfvpwfwbnnfcsddhsnwnvvqthjdgvzgjprtqmvhdqjqhgqppqqcpzfcwzcmrslftgrvbvdsdgfzfmvvcqzcszfwdvghdnlwwpddzdsqsdqvvrwhphbqvcbjbtnqgnqqdsqcmrllhmdvpffnqmrgfddjbrjwflshzswvjtmqgqmzvcnlctvdpjhzzlgpzgprjncrscnlmdhvdqpfllsqgstmssvlzmrtjmgwppfqjsrfmlnszdnhngzhtbbnsnvmtzpfsdcsvsvvjnfnzhrzmvlhrbslrsbgwwcvrzpgcnmjqnvgmzmlvpccrmggtzzhsdtbbcdnpdlnbztgjhttmqdhjphcrbgjtctqmgbfmflgqztztcjqvgsscrmwfbvnrnbgbjgqmwdzhwwnddwgrprhvlgftcbnwjqmcgczpbhfqcqzdbdwhmzfmgvcjdsfzdbrzjjvfrvftdblnlhpbqvdprnsjdpznbbgqpgnnjmcnsbszfwblthtwlwrdphjltclmqnbpcgngdnfpltttsrvdmhrcvlqfplqmqvslwgcbrwrmchscczrfgspwjtdqtlbddbsclrlbmhdzqdrgjfsgldfjmgcglbgjhmghntndqcbgqwmdvczbwgcctzvcrsqqctwwddfhhfhwlsrsljpnrlqtbdzprjbfrjgztwbpnfqnlftzcgrpmpcnljhscfbsqzbsgwqcgbvctnhswhrsmwjgcccdsnbscwllmpstpnrccjspnjqmtgcsgbjzpfvzjrhlvnfblqmcmgcrvnpchwhlsqsbhzhsgdvwmdcwphwccvzmmqqjrvqwphbnmddzcmggmbsqrhbcqmdlgvccbhhmhwdjhhhcwnffthmgfhpltqbhnvdqfrzjdvlppqhzfdgbzbrtfllsbvjjcgbwsbcmfrbjtvzqsntzdzprnpmfpfpgmfprlbcdqbdzjsfjbtczdpdnhlwdhmwsjtvmztbhdbbdgvrtbqsqbsnwjjhlslzcblrwlfpzqlvdvmgqhrpjmbjbntmjsjvgsmdsnctlgtnlqgfvhwqbjbrczpfzmzwgvrphfmnnhrlzwzgthzqnzzmptppzdszlcpjjvbpjbtjfrqtbnpnwsdglbbjftvngcghjlnsqwspmmfdpslsmqtpngbtvvrvbqqdsphfhvsnmhprfclnjmfrtqnlqcbmfrggbstwdbwsvtpvflvfgqltmqjpnfclbwtlwhmqrmzcrbztstgpjrdsnwpqrcnvvnnnszlrtpqjtsnbjrdcthrzrtccgcvnnlzfjlcdnzzqclvtncjbznrlpnzhvcwmrfrzpcldfmfzfpchlmddgvcfdqdhzzdtwhsfcvsthtmqgvhzdpjcgwsmrvwsnqmhdnfqdrrnmjwcpjjftfdhvwrwwtvptzfrmgffdcrhvcmccfqctswzzmlsjvdjzgjgndhmmrwvwmmtrnpgsnmtcqdbdpqjmcddcrbcfmmccnvsfhwtvfhsjfmlfttspfghpfggrffnrwjggqwggrmpzscprvdzmzhwjjcsmpsltzwgchttwpngrlptprqnjzzpbpbcvrclggtqwlcwdpjpnjrhtgqwsvhsswwqtlnglnqnvffrgmlbzthvnhrzvsvclgdmmjzrpfv

rust/src/day1.rs

@@ -0,0 +1,34 @@
+use std::fs::File;
+use std::io::BufReader;
+use std::io::BufRead;
+
+pub fn run() {
+    let file = File::open("resources/day1input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+    let mut calorie_totals: Vec<i64> = Vec::new();
+    let mut current_elf_calories = 0;
+
+    for line in reader.lines() {
+        let calories = line.unwrap().parse::<i64>().unwrap_or(0);
+        println!("Input calories: {:?}", calories);
+        if calories == 0 {
+            println!("Adding to current elf total: {:?}", current_elf_calories);
+            calorie_totals.push(current_elf_calories);
+            current_elf_calories = 0;
+        } else {
+            current_elf_calories += calories;
+        }
+    }
+
+    if current_elf_calories > 0 {
+        println!("Adding to current elf total: {:?}", current_elf_calories);
+        calorie_totals.push(current_elf_calories);
+    }
+
+    calorie_totals.sort();
+    calorie_totals.reverse();
+
+    assert!(calorie_totals.len() >= 3);
+    println!("Day 1 Part A Answer: {}", calorie_totals[0]);
+    println!("Day 1 Part B Answer: {}", calorie_totals[0] + calorie_totals[1] + calorie_totals[2]);
+}

rust/src/day2.rs

@@ -0,0 +1,50 @@
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+
+pub fn run() {
+    let file = File::open("resources/day2input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+
+    let mut part1_score: u32 = 0;
+    let mut part2_score: u32 = 0;
+
+    for line in reader.lines() {
+        let str = line.unwrap();
+        part1_score += calculate_score_part1(&str);
+        part2_score += calculate_score_part2(&str);
+    }
+
+    println!("Day 2 Part 1 Answer: {:?}", part1_score);
+    println!("Day 2 Part 2 Answer: {:?}", part2_score);
+}
+
+fn calculate_score_part1(game: &str) -> u32 {
+    return match &game[..] {
+        "A X" => 3 + 1,
+        "A Y" => 6 + 2,
+        "A Z" => 0 + 3,
+        "B X" => 0 + 1,
+        "B Y" => 3 + 2,
+        "B Z" => 6 + 3,
+        "C X" => 6 + 1,
+        "C Y" => 0 + 2,
+        "C Z" => 3 + 3,
+        _ => panic!()
+    };
+}
+
+fn calculate_score_part2(game: &str) -> u32 {
+    return match &game[..] {
+        "A X" => 3 + 0, // lose
+        "A Y" => 1 + 3, // draw
+        "A Z" => 2 + 6, // win
+        "B X" => 1 + 0, // lose
+        "B Y" => 2 + 3, // draw
+        "B Z" => 3 + 6, // win
+        "C X" => 2 + 0, // lose
+        "C Y" => 3 + 3, // draw
+        "C Z" => 1 + 6, // win
+        _ => panic!()
+    };
+}

rust/src/day3.rs

@@ -0,0 +1,44 @@
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+
+pub fn run() {
+    let file = File::open("resources/day3input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+
+    let mut priority_sum1 = 0;
+    let mut priority_sum2 = 0;
+    let mut counter: usize = 0;
+    let mut group_sacks: Vec<String> = vec![String::new(), String::new(), String::new()];
+
+    for line in reader.lines() {
+        // Part 1
+        let current_line = line.unwrap();
+        let (compartment1, compartment2) = current_line.split_at(current_line.len() / 2);
+        let common_item_code = get_common_item_code(compartment1, compartment2);
+        priority_sum1 += get_priority(common_item_code);
+
+        // Part 2
+        counter += 1;
+        group_sacks[counter % 3] = current_line;
+        if counter % 3 == 0 {
+            let badge_item_code = get_common_item_code_part2(&group_sacks[0][..], &group_sacks[1][..], &group_sacks[2][..]);
+            priority_sum2 += get_priority(badge_item_code);
+        }
+    }
+
+    println!("Day 3 Answer 1: {:?}", priority_sum1);
+    println!("Day 3 Answer 2: {:?}", priority_sum2);
+}
+
+fn get_priority(item: char) -> usize {
+    "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".find(item).unwrap() + 1
+}
+
+fn get_common_item_code(c1: &str, c2: &str) -> char {
+    c1.chars().find(|&c| c2.contains(c)).unwrap()
+}
+
+fn get_common_item_code_part2(c1: &str, c2: &str, c3: &str) -> char {
+    c1.chars().find(|&c| c1.contains(c) && c2.contains(c) && c3.contains(c)).unwrap()
+}

rust/src/day4.rs

@@ -0,0 +1,60 @@
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+
+use regex::Regex;
+
+#[derive(Debug, PartialEq, Eq)]
+struct ElfAssignment {
+    first_range_start: u8,
+    first_range_end: u8,
+    second_range_start: u8,
+    second_range_end: u8,
+}
+
+pub fn run() {
+    let file = File::open("resources/day4input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+
+    let re = Regex::new(r"^(\d{1,2})-(\d{1,2}),(\d{1,2})-(\d{1,2})$").unwrap();
+    let assignments: Vec<Option<ElfAssignment>> = reader
+        .lines()
+        .map(|line| {
+            let unwrapped_line = line.unwrap();
+            let cap = re.captures(unwrapped_line.as_str()).unwrap();
+            let groups = (cap.get(1), cap.get(2), cap.get(3), cap.get(4));
+            match groups {
+                (Some(r1), Some(r2), Some(r3), Some(r4)) => Some(ElfAssignment {
+                    first_range_start: r1.as_str().parse::<u8>().unwrap(),
+                    first_range_end: r2.as_str().parse::<u8>().unwrap(),
+                    second_range_start: r3.as_str().parse::<u8>().unwrap(),
+                    second_range_end: r4.as_str().parse::<u8>().unwrap(),
+                }),
+                _ => None,
+            }
+        })
+        .collect();
+
+    let mut total_overlap: u32 = 0;
+    let mut partial_overlap: u32 = 0;
+
+    for assignment in assignments {
+        let a = assignment.unwrap();
+        if (a.first_range_start >= a.second_range_start
+            && a.first_range_end <= a.second_range_end) ||
+            (a.second_range_start >= a.first_range_start
+                && a.second_range_end <= a.first_range_end) {
+            total_overlap += 1;
+        }
+
+        if ((a.first_range_start >= a.second_range_start && a.first_range_start <= a.second_range_end) ||
+            (a.first_range_end >= a.second_range_start && a.first_range_end <= a.second_range_end)) ||
+            ((a.second_range_start >= a.first_range_start && a.second_range_start <= a.first_range_end) ||
+                (a.second_range_end >= a.first_range_start && a.second_range_end <= a.first_range_end)) {
+            partial_overlap += 1;
+        }
+    }
+
+    println!("Day 4 Answer 1: {:?}", total_overlap);
+    println!("Day 4 Answer 2: {:?}", partial_overlap);
+}

rust/src/day5.rs

@@ -0,0 +1,74 @@
+use std::collections::VecDeque;
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+use std::str;
+
+pub fn run() {
+    let file = File::open("resources/day5input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+
+    let mut sorted_crates_part1: Vec<VecDeque<String>> = Vec::new();
+    let mut sorted_crates_part2: Vec<VecDeque<String>> = Vec::new();
+    let mut read_state: bool = true;
+
+    for line in reader.lines() {
+        let unwrapped_line = line.unwrap();
+        if unwrapped_line.len() == 0 {
+            sorted_crates_part1 = sorted_crates_part2.clone();
+            read_state = false;
+            continue;
+        }
+
+        if read_state {
+            let chunks = unwrapped_line
+                .as_bytes()
+                .chunks(4)
+                .map(str::from_utf8)
+                .collect::<Result<Vec<&str>, _>>()
+                .unwrap();
+
+            for n in 0..chunks.len() {
+                if chunks.len() > sorted_crates_part2.len() {
+                    sorted_crates_part2.push(VecDeque::new());
+                }
+                if chunks[n].contains("[") {
+                    sorted_crates_part2[n].push_back(chunks[n].to_string());
+                }
+            }
+        } else {
+            if unwrapped_line.contains("move") {
+                let args = unwrapped_line.split(" ").collect::<Vec<&str>>();
+                let num_crates_move = args[1].parse::<usize>().unwrap();
+                let source_col = args[3].parse::<usize>().unwrap();
+                let dest_col = args[5].parse::<usize>().unwrap();
+
+                for _ in 0..num_crates_move {
+                     let current_crate = sorted_crates_part1[source_col - 1].pop_front().unwrap();
+                     sorted_crates_part1[dest_col - 1].push_front(current_crate);
+                }
+
+                let mut crates: Vec<String> = sorted_crates_part2[source_col - 1]
+                    .drain(0..num_crates_move)
+                    .collect();
+                crates.reverse();
+                for c in crates {
+                    sorted_crates_part2[dest_col - 1].push_front(c);
+                }
+            }
+        }
+    }
+
+    let answer1:Vec<String> = sorted_crates_part1
+        .iter()
+        .map(|x| x.clone().pop_front().unwrap().trim().replace("[","").replace("]",""))
+        .collect();
+    println!("Day 5 Answer 1: {:?}", answer1.join(""));
+
+
+    let answer2:Vec<String> = sorted_crates_part2
+        .iter()
+        .map(|x| x.clone().pop_front().unwrap().trim().replace("[","").replace("]",""))
+        .collect();
+    println!("Day 5 Answer 2: {:?}", answer2.join(""));
+}

rust/src/day6.rs

@@ -0,0 +1,41 @@
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+
+pub fn run() {
+    let file = File::open("resources/day6input.txt").expect("Input file not found.");
+    let mut reader = BufReader::new(file);
+
+    let mut line = String::new();
+    let _ = reader.read_line(&mut line);
+
+    let chars: Vec<_> = line.chars().collect();
+
+    const START_OF_PACKET_SIZE: usize = 4;
+    const START_OF_MESSAGE_SIZE: usize = 14;
+
+    let start_of_packet: usize = find_unique_fragment_position(START_OF_PACKET_SIZE, &chars);
+    let start_of_message: usize = find_unique_fragment_position(START_OF_MESSAGE_SIZE, &chars);
+
+    println!("Day 6 Answer 1: {:?}", start_of_packet);
+    println!("Day 6 Answer 2: {:?}", start_of_message);
+}
+
+fn find_unique_fragment_position(fragment_size: usize, chars: &Vec<char>) -> usize {
+    let mut fragment_position: usize = 0;
+    for i in fragment_size..chars.len() {
+        let mut no_match: bool = true;
+        for j in 0..fragment_size {
+            for k in 0..fragment_size {
+                if j != k && chars[i - j] == chars[i - k] {
+                    no_match = false;
+                }
+            }
+        }
+        if no_match {
+            fragment_position = i + 1;
+            break;
+        }
+    }
+    fragment_position
+}

rust/src/day7.rs

@@ -0,0 +1,123 @@
+use std::collections::{HashMap, VecDeque};
+use std::fs::File;
+use std::io::BufRead;
+use std::io::BufReader;
+use std::str;
+
+#[derive(Debug)]
+struct FsNode {
+    name: String,
+    is_dir: bool,
+    size: u64,
+    sub_items: HashMap<String, FsNode>
+}
+
+pub fn run() {
+    let file = File::open("resources/day7input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+
+    let mut current_dir = VecDeque::from([String::from("_")]);
+    let mut root_node = FsNode {
+        name: String::from("_"),
+        is_dir: true,
+        size: 0,
+        sub_items: HashMap::new()
+    };
+
+    let mut current_node = &mut root_node;
+
+    for line in reader.lines() {
+        let linex = line.unwrap();
+        let parts: Vec<&str> = linex.split_whitespace().collect();
+        if parts[0] == "$" {
+            match parts[1] {
+                "cd" => {
+                    let dir = parts[2];
+                    if dir == "/" {
+                        current_dir = VecDeque::from([String::from("_")]);
+                        current_node = &mut root_node;
+                    } else if dir == ".." {
+                        current_dir.pop_back();
+                        current_node = find_node_by_path(&mut root_node,VecDeque::from(current_dir.clone())).unwrap();
+                    } else {
+                        current_dir.push_back(String::from(dir));
+                        current_node = current_node.sub_items.get_mut(dir).unwrap();
+                    }
+                }
+                "ls" => {}
+                _ => eprintln!("error: invalid command {:?}", parts[1])
+            }
+        } else if parts[0] == "dir" {
+            current_node.sub_items.insert(String::from(parts[1]),FsNode {
+                name: String::from(parts[1]),
+                is_dir: true,
+                size: 0,
+                sub_items: HashMap::new()
+            });
+        } else {
+            current_node.sub_items.insert(String::from(parts[1].to_string()),FsNode {
+                name: String::from(parts[1].to_string()),
+                is_dir: false,
+                size: parts[0].parse::<u64>().unwrap(),
+                sub_items: HashMap::new()
+            });
+        }
+    }
+
+    let mut sizes:Vec<u64> = Vec::new();
+    let mut sum: u64 = 0;
+    let mut answer2: u64 = 0;
+    let fs_size: u64  = 70000000;
+    let fs_min_space: u64  = 30000000;
+    let used_space = calculate_dir_sizes(&root_node, &mut sizes);
+    let free_space = fs_size-used_space;
+    println!("used space: {:?}", used_space);
+    println!("free space: {:?}", free_space);
+
+    sizes.sort();
+    for x in sizes {
+        if x <= 100000 {
+            sum += x;
+        }
+        if answer2 == 0 && free_space+x >= fs_min_space {
+            answer2 = x;
+        }
+    }
+
+    println!("Day 7 Answer 1: {:?}", sum);
+    println!("Day 7 Answer 2: {:?}", answer2);
+}
+
+fn find_node_by_path(node: &mut FsNode, mut path: VecDeque<String>) -> Option<&mut FsNode> {
+    let name = path.pop_front()?; // Return None if the path is empty
+    if path.len() == 0 && name == "_" {
+        return Some(node);
+    }
+    if name == "_" {
+        return find_node_by_path(node, path);
+    }
+    if let Some(sub_item) = node.sub_items.get_mut(name.as_str()) {
+        return if path.len() == 0 && sub_item.name == name && sub_item.is_dir {
+            Some(sub_item)
+        } else {
+            find_node_by_path(sub_item, path)
+        }
+    }
+    None
+}
+
+fn calculate_dir_sizes(node: &FsNode, dir_sizes: &mut Vec<u64>) -> u64 {
+    let mut sum: u64 = 0;
+    if node.sub_items.len() > 0 {
+        for (_, sub_node) in &node.sub_items {
+            if sub_node.is_dir {
+                let size = calculate_dir_sizes(sub_node, dir_sizes);
+                sum += size;
+                dir_sizes.push(size);
+            } else {
+                sum += sub_node.size;
+            }
+        }
+    }
+    sum
+}

rust/src/main.rs

@@ -0,0 +1,29 @@
+use std::env;
+
+mod day1;
+mod day2;
+mod day3;
+mod day4;
+mod day5;
+mod day6;
+mod day7;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    match args.len() {
+        2 => {
+            let day_to_run = &args[1];
+            match &day_to_run[..] {
+                "day1" => day1::run(),
+                "day2" => day2::run(),
+                "day3" => day3::run(),
+                "day4" => day4::run(),
+                "day5" => day5::run(),
+                "day6" => day6::run(),
+                "day7" => day7::run(),
+                _ => eprintln!("error: invalid day")
+            }
+        },
+        _ => eprintln!("Error: not enough or too many arguments.")
+    };
+}