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Missed several updates. Working on 8 pt 2

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This commit is contained in:
Connor Johnstone
2023-12-07 23:51:02 -07:00
parent 1793b37364
commit 58e0f7fcea
22 changed files with 4230 additions and 12 deletions
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24
day_04/src/lib.rs
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@@ -10,40 +10,40 @@ use nom::{
#[derive(Debug)] #[derive(Debug)]
pub struct Card { pub struct Card {
winning_set: Vec<u32>, winning_set: Vec<u64>,
player_set: Vec<u32>, player_set: Vec<u64>,
} }
impl Card { impl Card {
fn score(&self) -> u32 { fn score(&self) -> u64 {
let count = self.win_count(); let count = self.win_count();
if count == 0 { if count == 0 {
0 0
} else { } else {
2_u32.pow(count as u32 - 1) 2_u64.pow(count as u64 - 1)
} }
} }
fn win_count(&self) -> u32 { fn win_count(&self) -> u64 {
self.player_set.iter().filter(|num| {self.winning_set.contains(num)}).count() as u32 self.player_set.iter().filter(|num| {self.winning_set.contains(num)}).count() as u64
} }
} }
// Card 1: 41 48 83 86 17 | 83 86 6 31 17 9 48 53 // Card 1: 41 48 83 86 17 | 83 86 6 31 17 9 48 53
fn parse_line(input: &str) -> IResult<&str, Card> { fn parse_line(input: &str) -> IResult<&str, Card> {
let (input, _) = preceded(tag("Card "), preceded(space0, complete::u32))(input)?; let (input, _) = preceded(tag("Card "), preceded(space0, complete::u64))(input)?;
let (input, winning_set) = preceded(tag(": "), preceded(space0, separated_list1(space1, complete::u32)))(input)?; let (input, winning_set) = preceded(tag(": "), preceded(space0, separated_list1(space1, complete::u64)))(input)?;
let (input, player_set) = preceded(tag(" | "), preceded(space0, separated_list1(space1, complete::u32)))(input)?; let (input, player_set) = preceded(tag(" | "), preceded(space0, separated_list1(space1, complete::u64)))(input)?;
Ok((input, Card{winning_set, player_set})) Ok((input, Card{winning_set, player_set}))
} }
pub fn part1(input: &str) -> String { pub fn part1(input: &str) -> String {
input.lines().map(|line| { parse_line(line).unwrap().1.score() }).sum::<u32>().to_string() input.lines().map(|line| { parse_line(line).unwrap().1.score() }).sum::<u64>().to_string()
} }
pub fn part2(input: &str) -> String { pub fn part2(input: &str) -> String {
let num_games = input.lines().count(); let num_games = input.lines().count();
let mut current_cards = (0..num_games).map(|_| {1}).collect::<Vec<u32>>(); let mut current_cards = (0..num_games).map(|_| {1}).collect::<Vec<u64>>();
current_cards.push(0); current_cards.push(0);
let mut current_index = 0; let mut current_index = 0;
let mut cards = input.lines().map(|line| { let mut cards = input.lines().map(|line| {
@@ -58,7 +58,7 @@ pub fn part2(input: &str) -> String {
current_cards[i] += number_of_current_card; current_cards[i] += number_of_current_card;
} }
} }
current_cards.into_iter().sum::<u32>().to_string() current_cards.into_iter().sum::<u64>().to_string()
} }
pub mod prelude { pub mod prelude {

639
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day_06/Cargo.toml Normal file
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@@ -0,0 +1,22 @@
[package]
name = "day_06"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
nom = "7.1.3"
strum = "0.25.0"
strum_macros = "0.25.3"
[dev-dependencies]
criterion = { version = "0.4", features = ["html_reports"] }
[[bench]]
name = "part1"
harness = false
[[bench]]
name = "part2"
harness = false

11
day_06/benches/part1.rs Normal file
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@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_06::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 1", |b| b.iter(|| part1(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

11
day_06/benches/part2.rs Normal file
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@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_06::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 2", |b| b.iter(|| part2(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

2
day_06/input.txt Normal file
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@@ -0,0 +1,2 @@
Time: 46 82 84 79
Distance: 347 1522 1406 1471

64
day_06/src/lib.rs Normal file
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@@ -0,0 +1,64 @@
use nom::{
bytes::complete::tag,
character::complete::{
self, space0, space1,
},
multi::separated_list1,
sequence::{preceded, tuple},
IResult,
};
use std::iter::zip;
fn parse_races(input: &str) -> IResult<&str, Vec<(u64, u64)>> {
let (input, times) = preceded(tuple((tag("Time:"),space1)), separated_list1(space1, complete::u64))(input)?;
let (input, distances) = preceded(tuple((tag("\nDistance:"),space1)), separated_list1(space1, complete::u64))(input)?;
Ok((input, zip(times, distances).collect()))
}
fn parse_races_alt(input: &str) -> IResult<&str, (u64, u64)> {
let (input, times) = preceded(tuple((tag("Time:"),space0)), complete::u64)(input)?;
let (input, distances) = preceded(tuple((tag("\nDistance:"),space0)), complete::u64)(input)?;
Ok((input, (times, distances)))
}
pub fn part1(input: &str) -> String {
let (_, races) = parse_races(input).unwrap();
races.into_iter().map(|(time, distance)| {
let upper_bound_full = (time as f64 + ((time as f64).powi(2) - 4.0 * distance as f64).sqrt()) / 2.0;
let upper_bound = if upper_bound_full - upper_bound_full.floor() == 0.0 {
upper_bound_full.floor() as u64 - 1
} else {
upper_bound_full.floor() as u64
};
let lower_bound_full = (time as f64 - ((time as f64).powi(2) - 4.0 * distance as f64).sqrt()) / 2.0;
let lower_bound = if lower_bound_full - lower_bound_full.ceil() == 0.0 {
lower_bound_full.ceil() as u64 + 1
} else {
lower_bound_full.ceil() as u64
};
upper_bound - lower_bound + 1
}).product::<u64>().to_string()
}
pub fn part2(input: &str) -> String {
let (_, (time, distance)) = parse_races_alt(input.replace(" ", "").as_str()).unwrap();
let upper_bound_full = (time as f64 + ((time as f64).powi(2) - 4.0 * distance as f64).sqrt()) / 2.0;
let upper_bound = if upper_bound_full - upper_bound_full.floor() == 0.0 {
upper_bound_full.floor() as u64 - 1
} else {
upper_bound_full.floor() as u64
};
let lower_bound_full = (time as f64 - ((time as f64).powi(2) - 4.0 * distance as f64).sqrt()) / 2.0;
let lower_bound = if lower_bound_full - lower_bound_full.ceil() == 0.0 {
lower_bound_full.ceil() as u64 + 1
} else {
lower_bound_full.ceil() as u64
};
(upper_bound - lower_bound + 1).to_string()
}
pub mod prelude {
pub use super::part1;
pub use super::part2;
}

27
day_06/src/main.rs Normal file
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@@ -0,0 +1,27 @@
use day_06::prelude::*;
fn main() {
let input = include_str!("../input.txt");
println!("{}", part1(input));
println!("{}", part2(input));
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_part1() {
let test_input = "Time: 7 15 30
Distance: 9 40 200";
assert_eq!(part1(test_input), "288".to_string());
}
#[test]
fn test_part2() {
let test_input = "Time: 7 15 30
Distance: 9 40 200";
assert_eq!(part2(test_input), "71503".to_string());
}
}

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22
day_07/Cargo.toml Normal file
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@@ -0,0 +1,22 @@
[package]
name = "day_07"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
nom = "7.1.3"
strum = "0.25.0"
strum_macros = "0.25.3"
[dev-dependencies]
criterion = { version = "0.4", features = ["html_reports"] }
[[bench]]
name = "part1"
harness = false
[[bench]]
name = "part2"
harness = false

11
day_07/benches/part1.rs Normal file
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@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_07::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 1", |b| b.iter(|| part1(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

11
day_07/benches/part2.rs Normal file
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@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_07::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 2", |b| b.iter(|| part2(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

1000
day_07/input.txt Normal file
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171
day_07/src/lib.rs Normal file
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@@ -0,0 +1,171 @@
use nom::{
bytes::complete::take,
character::complete::{
self, space1,
},
sequence::preceded,
IResult,
};
use std::collections::HashMap;
// 393J3 50208020002 836
// 3TJAJ 50209001200 837
fn is_five_of_a_kind(card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().any(|x| {x==&5}) {
true
} else if match_numbers.iter().any(|x| {x==&4}) && card.matches("J").count() == 1 {
true
} else if match_numbers.iter().any(|x| {x==&3}) && card.matches("J").count() == 2 {
true
} else if match_numbers.iter().any(|x| {x==&2}) && card.matches("J").count() == 3 {
true
} else if match_numbers.iter().any(|x| {x==&1}) && card.matches("J").count() == 4 {
true
} else if card.matches("J").count() == 5 {
true
} else {
false
}
}
fn is_four_of_a_kind(card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().any(|x| {x==&4}) {
true
} else if match_numbers.iter().any(|x| {x==&3}) && card.matches("J").count() == 1 {
true
} else if match_numbers.iter().any(|x| {x==&2}) && card.matches("J").count() == 2 {
true
} else if card.matches("J").count() == 3 {
true
} else {
false
}
}
fn is_full_house(card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().filter(|x| x > &&0).count() == 2 && match_numbers.iter().sum::<usize>() == 5 {
true
} else if match_numbers.iter().filter(|x| x == &&2).count() == 2 && card.matches("J").count() == 1 {
true
} else {
false
}
}
fn is_three_of_a_kind(card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().any(|x| {x==&3}) {
true
} else if match_numbers.iter().any(|x| {x==&2}) && card.matches("J").count() == 1 {
true
} else if card.matches("J").count() == 2 {
true
} else {
false
}
}
fn is_two_pair(_card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().filter(|x| x == &&2).count() == 2 {
true
} else {
false
}
}
fn is_pair(card: &str, match_numbers: Vec<usize>) -> bool {
if match_numbers.iter().any(|x| {x==&2}) {
true
} else if card.matches("J").count() == 1 {
true
} else {
false
}
}
fn score_card_pt2(card: &str) -> u64 {
let values = HashMap::from(
[('2', 1),('3', 2),('4', 3),('5', 4),('6', 5),('7', 6),('8', 7),('9', 8),('T', 9),('J', 0),('Q', 10),('K', 11),('A', 12)]
);
let values_without_joker = HashMap::from(
[('2', 1),('3', 2),('4', 3),('5', 4),('6', 5),('7', 6),('8', 7),('9', 8),('T', 9),('Q', 10),('K', 11),('A', 12)]
);
let sub_score = card.chars().enumerate().fold(0, |acc, (i, character)| {
acc + values.get(&character).unwrap() * 10_u64.pow(8 - 2*i as u32)
});
let match_numbers = values_without_joker.keys().map(|value| { card.matches(*value).count() }).collect::<Vec<usize>>();
if is_five_of_a_kind(card, match_numbers.clone()) {
6 * 10_u64.pow(10) + sub_score
} else if is_four_of_a_kind(card, match_numbers.clone()) {
5 * 10_u64.pow(10) + sub_score
} else if is_full_house(card, match_numbers.clone()) {
4 * 10_u64.pow(10) + sub_score
} else if is_three_of_a_kind(card, match_numbers.clone()) {
3 * 10_u64.pow(10) + sub_score
} else if is_two_pair(card, match_numbers.clone()) {
2 * 10_u64.pow(10) + sub_score
} else if is_pair(card, match_numbers.clone()) {
1 * 10_u64.pow(10) + sub_score
} else {
sub_score
}
}
fn score_card(card: &str) -> u64 {
let values = HashMap::from(
[('2', 0),('3', 1),('4', 2),('5', 3),('6', 4),('7', 5),('8', 6),('9', 7),('T', 8),('J', 9),('Q', 10),('K', 11),('A', 12)]
);
let sub_score = card.chars().enumerate().fold(0, |acc, (i, character)| {
acc + values.get(&character).unwrap() * 10_u64.pow(8 - 2*i as u32)
});
let match_numbers = values.keys().map(|value| { card.matches(*value).count() });
if match_numbers.clone().any(|x| {x==5}) {
6 * 10_u64.pow(10) + sub_score
} else if match_numbers.clone().any(|x| {x==4}) {
5 * 10_u64.pow(10) + sub_score
} else if match_numbers.clone().filter(|x| x > &0).count() == 2 && match_numbers.clone().sum::<usize>() == 5 {
4 * 10_u64.pow(10) + sub_score
} else if match_numbers.clone().any(|x| {x==3}) {
3 * 10_u64.pow(10) + sub_score
} else if match_numbers.clone().filter(|x| x > &0).count() == 3 {
2 * 10_u64.pow(10) + sub_score
} else if match_numbers.clone().any(|x| {x==2}) {
1 * 10_u64.pow(10) + sub_score
} else {
sub_score
}
}
fn parse_card(input: &str) -> IResult<&str, (&str, u64)> {
let (input, card) = take(5 as usize)(input)?;
let (input, bid) = preceded(space1, complete::u64)(input)?;
Ok((input, (card, bid)))
}
pub fn part1(input: &str) -> String {
let mut scored_hands = input.lines().map(|line| {
let (_, (card, bid)) = parse_card(line).unwrap();
let score = score_card(card);
(card, score, bid)
}).collect::<Vec<_>>();
scored_hands.sort_by_key(|x| {x.1});
scored_hands.into_iter().enumerate().map(|(i, (_, _, bid))| { (i as u64 + 1) * bid }).sum::<u64>().to_string()
}
pub fn part2(input: &str) -> String {
let mut scored_hands = input.lines().map(|line| {
let (_, (card, bid)) = parse_card(line).unwrap();
let score = score_card_pt2(card);
(card, score, bid)
}).collect::<Vec<_>>();
scored_hands.sort_by_key(|x| {x.1});
scored_hands.iter().enumerate().for_each(|(i, (card, score, _))| {println!("{} {} {}", card, score, i);});
scored_hands.into_iter().enumerate().map(|(i, (_, _, bid))| { (i as u64 + 1) * bid }).sum::<u64>().to_string()
}
pub mod prelude {
pub use super::part1;
pub use super::part2;
}

33
day_07/src/main.rs Normal file
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@@ -0,0 +1,33 @@
use day_07::prelude::*;
fn main() {
let input = include_str!("../input.txt");
println!("{}", part1(input));
println!("{}", part2(input));
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_part1() {
let test_input = "32T3K 765
T55J5 684
KK677 28
KTJJT 220
QQQJA 483";
assert_eq!(part1(test_input), "6440".to_string());
}
#[test]
fn test_part2() {
let test_input = "32T3K 765
T55J5 684
KK677 28
KTJJT 220
QQQJA 483";
assert_eq!(part2(test_input), "5905".to_string());
}
}

639
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22
day_08/Cargo.toml Normal file
View File

@@ -0,0 +1,22 @@
[package]
name = "day_08"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
nom = "7.1.3"
strum = "0.25.0"
strum_macros = "0.25.3"
[dev-dependencies]
criterion = { version = "0.4", features = ["html_reports"] }
[[bench]]
name = "part1"
harness = false
[[bench]]
name = "part2"
harness = false

11
day_08/benches/part1.rs Normal file
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@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_08::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 1", |b| b.iter(|| part1(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

11
day_08/benches/part2.rs Normal file
View File

@@ -0,0 +1,11 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use day_08::prelude::*;
fn criterion_benchmark(c: &mut Criterion) {
let input = include_str!("../input.txt");
c.bench_function("part 2", |b| b.iter(|| part2(black_box(input))));
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);

752
day_08/input.txt Normal file
View File

@@ -0,0 +1,752 @@
LRRLLRLRRRLRRRLRRLRRRLRRLRRRLRRLRRRLRLRRRLRRRLRRRLRLRRLRRRLRRRLRRLRRLRRLRLLLRRRLRRRLRLRLRRLLRRRLRRLRRRLRLRRLRRRLRRRLLRLRLLRRRLRRRLLRRRLRRRLRRRLRRLRRRLLLRRRLRLLLRLRLRLLRLRLLLRRLRRLLRRLRRRLRRLRRLRLRRLLRRLRLRRLLLRRRLLRRRLLRLRLLRRRLRLLRRLRLRRLRLRRRLLRRRLLRRLRLRRLRRLLRLRLRRRLRLRRRR
GLJ = (QQV, JTL)
JSJ = (DKN, GQN)
MGD = (BPL, LQC)
VSK = (SPH, DDH)
TSB = (MKP, TKX)
HPD = (GKG, XMX)
BLZ = (HGN, KRR)
BMQ = (JXC, HFC)
GDG = (BVJ, NBL)
LST = (PVJ, DPR)
QQQ = (RLV, SNJ)
TMV = (XGV, KCL)
NPZ = (JRD, NHL)
DDH = (NDR, XPN)
SFQ = (TKD, SQH)
RNK = (TJN, NFX)
FRS = (SCJ, FDV)
RST = (BSQ, MHQ)
DSM = (FRX, DMN)
GBN = (VBL, XRK)
GLH = (KNN, PKP)
JRD = (LDP, RNH)
SPV = (JNR, FRK)
PMD = (FXP, BKL)
MDV = (MGD, FHM)
MGG = (KMN, QPL)
FNX = (FKG, NLT)
FPH = (QXS, PBR)
DKP = (QFT, QQQ)
XVH = (PVP, GBJ)
SSP = (BHD, KRM)
JVR = (RHB, LDJ)
HCX = (RNK, LGT)
LRX = (SFN, GXD)
DXN = (NQX, KNL)
GNT = (GHV, DKG)
QVF = (NJN, FSN)
QHQ = (FXN, PNP)
CHX = (DHN, BQB)
GQD = (TLQ, XXG)
RMF = (RVF, KKR)
JHN = (NRG, RCC)
MBG = (XPV, MSB)
XJN = (SQT, XXJ)
JNR = (VTP, XSF)
NXD = (DKP, MKJ)
LSS = (KHS, BSV)
SQH = (BLH, VCG)
TLM = (DCG, BQL)
HTG = (TLF, KRB)
GGM = (KLV, PTG)
PVJ = (BHR, TRH)
PRP = (QLC, JPQ)
CVC = (KVJ, FTM)
RMH = (RPD, FFK)
MRL = (KFK, LJK)
VMG = (LSX, FPH)
DKQ = (XSM, CXK)
QBD = (BGB, GPS)
RFV = (QCG, NJD)
FDN = (QFL, DXN)
RMV = (NCJ, PMZ)
BCJ = (MDD, TMG)
BMB = (GLH, MKK)
DLQ = (JKX, VGS)
NBL = (GFQ, PRQ)
NVG = (SCS, JTS)
CBX = (MXQ, QSM)
HFJ = (NXX, VRX)
FMQ = (KDV, HFJ)
DSK = (BND, GFJ)
TRM = (MMX, BTG)
XKS = (GXD, SFN)
LDJ = (TFQ, CJK)
LFP = (TFS, LST)
PQS = (PJR, SMD)
MTA = (JPD, MVX)
FMM = (GPC, BVB)
NJD = (JMG, DPL)
VQJ = (KRM, BHD)
PXP = (BPB, JJK)
JDM = (HHQ, JXD)
BJK = (SRN, DRL)
MRS = (RPT, SQF)
RCC = (DRD, SPP)
XPG = (XRK, VBL)
JLR = (LJQ, XDP)
KLV = (SKX, SKX)
JBB = (LRB, RRT)
NDP = (KMS, DDJ)
XML = (TPD, VKQ)
TPM = (PKJ, PGR)
DGQ = (JFK, TMB)
XTL = (MPK, CTL)
VSH = (BNH, HJR)
PVG = (SPV, KCS)
CCQ = (LQB, VTK)
PLS = (HPS, CVC)
GMQ = (CTG, QHQ)
PNP = (VSK, JCV)
JPD = (KKV, FQP)
PRL = (KRB, TLF)
NMT = (HXL, NHV)
DLP = (KXR, BXQ)
NFG = (DSR, HNX)
BPB = (BTM, MGR)
JPL = (NMT, QMD)
HJG = (XJD, HHX)
BBK = (VVF, SBN)
GQL = (XNX, CKR)
BND = (SQB, KFG)
VRF = (JKS, LGG)
PXG = (QMD, NMT)
FKG = (GBS, JLR)
NCJ = (NFG, CQH)
CVM = (LFD, NPZ)
GQN = (SMM, PQH)
LJQ = (LXQ, KVG)
PFK = (HHQ, JXD)
KLQ = (JNB, DKQ)
QRP = (SCB, HCM)
LRB = (RMD, KLN)
XPP = (GMK, LKL)
LFD = (NHL, JRD)
TVK = (TMV, TJF)
MQD = (HTG, PRL)
MKJ = (QQQ, QFT)
QLF = (CHX, XSR)
MPP = (XMK, QFP)
HQQ = (PCS, PDC)
NXX = (BTN, KBJ)
JBQ = (GGH, FJL)
BGB = (JSF, MNP)
BRD = (VMF, NTR)
HCM = (RHX, KJG)
NKP = (GHV, DKG)
XJK = (TRS, DGQ)
GPS = (MNP, JSF)
NCM = (VMJ, CSC)
LSX = (PBR, QXS)
VLF = (MTL, GVK)
XFT = (XGS, CRL)
HLR = (FMM, QLH)
FFR = (XXX, BGX)
MRB = (XJD, HHX)
TVS = (MTL, GVK)
KNL = (KDN, HQQ)
PNV = (SQF, RPT)
HVB = (BBB, LLG)
RGX = (RLK, MSX)
MKB = (HNP, NGM)
FKL = (XMK, QFP)
LXQ = (GNB, TQH)
CQF = (NGF, NQF)
BSV = (KFX, HNH)
SVQ = (PXP, XQM)
BHD = (XVH, GDN)
QQB = (PCB, PCB)
DCG = (GRH, RGX)
RRT = (KLN, RMD)
KDN = (PDC, PCS)
RHJ = (VTK, LQB)
LVR = (VSH, QGS)
NHT = (LQS, DMB)
PBR = (TCF, JCC)
GBJ = (MLT, XNB)
BJB = (XPR, MBG)
PQH = (MCH, LMB)
MPM = (BSV, KHS)
SGB = (TKF, PMD)
XQM = (JJK, BPB)
TLQ = (FGM, CRC)
FXP = (BCJ, TDR)
VDG = (VMJ, CSC)
XGV = (LHS, LTS)
JKP = (PXG, JPL)
KFQ = (TSB, RNB)
NHL = (LDP, RNH)
TRS = (JFK, TMB)
PMM = (RHC, KMQ)
QMB = (PPJ, CNG)
MKH = (DDJ, KMS)
NCG = (XXX, BGX)
DBG = (SND, HMN)
GVK = (TQD, JHN)
KKM = (KKL, PBT)
HLP = (JPQ, QLC)
GPH = (JKG, DKK)
XQP = (GLH, MKK)
HRF = (BGB, GPS)
BXQ = (BDH, GQT)
NDR = (KKM, LRR)
HQR = (RGL, RMX)
PCS = (DTB, LDS)
LQB = (GMQ, HRQ)
KKR = (KTV, CMB)
NGM = (KFQ, BQJ)
KLN = (XFT, JRL)
HRR = (RHJ, CCQ)
XSF = (CKX, PLS)
BTG = (GDG, JDS)
PBT = (NVG, DVP)
CPP = (VSH, QGS)
MLN = (VGS, JKX)
JRF = (SKN, RMF)
KHS = (KFX, HNH)
DDP = (QJG, XKJ)
FGM = (TVK, TNS)
QJH = (XSL, QXP)
TNX = (NBV, KLQ)
JVC = (FBR, PFT)
XPV = (TLM, PPK)
PCK = (KBG, TGJ)
HRS = (VKM, JVF)
DKK = (NHT, ZZZ)
TJN = (KTL, QLF)
THT = (JJQ, LRJ)
JNB = (CXK, XSM)
CRL = (VXT, TBG)
RVF = (CMB, KTV)
GQT = (PBB, CVM)
QGF = (MGT, SKV)
SCJ = (CQF, KRQ)
SCM = (DPB, PMM)
KNN = (XLQ, VPB)
PPK = (BQL, DCG)
LPP = (HJG, MRB)
RRM = (RXT, PBZ)
DCT = (FTF, HVB)
PQP = (PBQ, HVR)
NTV = (SCM, GKN)
XXX = (LSS, MPM)
BKP = (LXL, LXL)
BLH = (QLV, SFJ)
SPH = (NDR, XPN)
CVF = (KDV, HFJ)
XDK = (RHJ, CCQ)
NQQ = (NTT, FVL)
TQF = (XCV, NDX)
VRX = (BTN, KBJ)
KFX = (XLN, FDN)
DMN = (TPT, JRQ)
VVF = (TPQ, CDH)
XPN = (LRR, KKM)
LQC = (TMX, LHQ)
XXT = (TLR, DDP)
PBB = (LFD, LFD)
GKF = (CHM, XTL)
SNJ = (NSR, KVD)
FKS = (PPL, PSM)
BJZ = (MVX, JPD)
JSF = (GQD, GQP)
BFM = (QXR, MVF)
QSD = (JHV, JKP)
XSR = (DHN, BQB)
SVM = (PKJ, PGR)
XXJ = (HGF, MPG)
KRB = (QMB, VNX)
XJD = (SFQ, SGF)
HGN = (KBF, LXS)
TKF = (FXP, BKL)
KHB = (TPJ, CGD)
JFK = (JJX, DMH)
PMT = (HGC, HJQ)
NBV = (DKQ, JNB)
FMN = (BJB, HSV)
HPS = (KVJ, KVJ)
GLT = (LXL, NFN)
PSM = (PMT, CKP)
RSM = (JRF, PDB)
KVD = (PFK, JDM)
CSQ = (HJG, MRB)
PKJ = (HDR, TJQ)
LRJ = (JSJ, BFS)
KFG = (KKT, CQR)
TPD = (THT, KBB)
KBB = (LRJ, JJQ)
XGS = (VXT, TBG)
RHX = (XJK, QND)
QPL = (DDN, STH)
BQB = (XJC, SBH)
KCL = (LHS, LTS)
XPH = (KXR, BXQ)
QNA = (NHL, JRD)
KVJ = (KHJ, KHJ)
QJP = (RNK, LGT)
QFL = (KNL, NQX)
KFP = (HLR, LCV)
QLV = (PMX, BJK)
TLR = (QJG, XKJ)
NLQ = (XML, BDS)
JXD = (MQD, GBH)
LXP = (HRR, XDK)
DJS = (GLJ, RNF)
FLS = (FMB, MRL)
HXL = (BXS, FDM)
NQX = (KDN, HQQ)
PGR = (TJQ, HDR)
CGD = (DGS, VKN)
KRQ = (NQF, NGF)
JSB = (PNQ, DHV)
MBJ = (JCK, QRP)
MXQ = (DRG, DSM)
HMN = (CBP, CPG)
JTL = (RST, SPD)
DKG = (GQK, XMQ)
NJN = (TVS, VLF)
LTS = (JCB, TQF)
XNP = (JVF, VKM)
RTG = (XXJ, SQT)
KNT = (LRB, RRT)
SFL = (LXP, CDN)
GXD = (MMT, CNX)
SMC = (XTL, CHM)
JCB = (XCV, NDX)
DQT = (RBJ, QGF)
TFR = (MKH, NDP)
HTP = (CSQ, LPP)
JKM = (VVK, SHX)
LGG = (RPH, NTV)
NSR = (JDM, PFK)
QFT = (SNJ, RLV)
SQF = (GRG, RSX)
SFD = (FFK, RPD)
SCD = (SNC, LGQ)
CXK = (VDN, SQM)
LDP = (NLQ, DGV)
CDN = (XDK, HRR)
HFC = (QBD, HRF)
LGT = (NFX, TJN)
VKM = (QJP, HCX)
HGF = (SCD, TKT)
VGS = (SGB, VXD)
MGL = (FTN, LBF)
FDM = (DLQ, MLN)
FTP = (HJL, JQG)
TCN = (MRL, FMB)
NGR = (QPL, KMN)
NDX = (DMX, LTG)
GVJ = (JDG, PCK)
MVF = (KVR, TQK)
MXJ = (FPQ, VBV)
RNH = (DGV, NLQ)
RPD = (RFV, PGG)
JKG = (NHT, NHT)
XNX = (JDB, DQT)
DRL = (GCM, DSK)
TCF = (TCJ, SVQ)
LCL = (NJN, FSN)
MJM = (QSM, MXQ)
JJK = (BTM, MGR)
SPX = (JDG, PCK)
QLC = (DHJ, PVG)
GPC = (XKC, RTT)
TJQ = (XPG, GBN)
HSV = (XPR, MBG)
JKS = (RPH, NTV)
XDP = (KVG, LXQ)
JDS = (NBL, BVJ)
TQK = (NCR, HTP)
BLX = (TFS, LST)
KRR = (LXS, KBF)
XMQ = (KHB, MMC)
KBG = (DBG, MQR)
LRR = (KKL, PBT)
LFV = (HVQ, MNJ)
HGD = (MNL, PDJ)
GLB = (NDP, MKH)
CMB = (VDG, NCM)
TKD = (VCG, BLH)
BQJ = (TSB, RNB)
QBT = (MKB, RKM)
GJQ = (BTG, MMX)
SGF = (TKD, SQH)
RMD = (JRL, XFT)
DDJ = (HRS, XNP)
HNP = (KFQ, BQJ)
FQF = (MNJ, HVQ)
PJT = (FRQ, KFP)
RKM = (NGM, HNP)
VBV = (LVR, CPP)
RBJ = (SKV, MGT)
MPG = (SCD, TKT)
BHR = (BRM, FJC)
VTP = (CKX, PLS)
PBQ = (RQC, HGD)
RMX = (FTP, NGJ)
SMP = (KRR, HGN)
KBF = (RMK, BMQ)
LSL = (JSB, VPL)
KRM = (GDN, XVH)
DHJ = (SPV, KCS)
XNB = (QFH, PGQ)
TGJ = (DBG, MQR)
LHQ = (FNX, KFF)
GCM = (GFJ, BND)
MJQ = (BBK, KVM)
NQF = (SSP, VQJ)
VPL = (DHV, PNQ)
HHX = (SFQ, SGF)
FJL = (MGL, XKH)
HNH = (FDN, XLN)
RLK = (LCL, QVF)
SND = (CPG, CBP)
CNG = (DJS, HVS)
VDN = (QBK, MXJ)
BRM = (SMC, GKF)
VTK = (HRQ, GMQ)
MVX = (KKV, FQP)
TDR = (TMG, MDD)
SQT = (HGF, MPG)
TMN = (HVB, FTF)
GNB = (BFT, QXK)
QXP = (MJM, CBX)
GQK = (MMC, KHB)
QGX = (NDB, QSD)
TMX = (FNX, KFF)
BLD = (NBV, KLQ)
RHC = (NXK, PJT)
XJC = (QKG, QKG)
GBH = (HTG, PRL)
TPT = (TRQ, XXT)
FTF = (BBB, LLG)
QJG = (FKS, PQG)
FVR = (LXP, CDN)
XCA = (FVR, SFL)
VMJ = (KHP, MDV)
NTT = (LFP, BLX)
DMB = (TCN, FLS)
CQR = (LRX, XKS)
JFR = (TMN, DCT)
TRQ = (DDP, TLR)
BXS = (MLN, DLQ)
LLG = (LSK, XMD)
CBP = (RHF, BRD)
PFT = (SMP, BLZ)
TNS = (TMV, TJF)
DHV = (VFX, VVR)
PPL = (CKP, PMT)
QND = (DGQ, TRS)
VBL = (MGG, NGR)
FHM = (BPL, LQC)
KKT = (LRX, XKS)
LHS = (JCB, TQF)
LXL = (LJH, LJH)
BLT = (GGH, FJL)
JQG = (XCT, FRS)
KCS = (JNR, FRK)
SKX = (JKG, JKG)
VKN = (NMS, QBT)
DSL = (FMN, PJN)
TPJ = (VKN, DGS)
CKR = (JDB, DQT)
LKL = (QLQ, NXD)
SMM = (LMB, MCH)
FSN = (TVS, VLF)
KMS = (XNP, HRS)
MTX = (LGG, JKS)
CHM = (CTL, MPK)
HRQ = (QHQ, CTG)
QCG = (JMG, DPL)
TQH = (QXK, BFT)
JXC = (QBD, HRF)
JVF = (QJP, HCX)
TJF = (KCL, XGV)
XDS = (QQB, QQB)
KJG = (QND, XJK)
CTG = (FXN, PNP)
BBB = (LSK, XMD)
DMH = (NHF, JKM)
BGX = (LSS, MPM)
RHF = (VMF, NTR)
KHJ = (JPD, MVX)
SCS = (FNJ, RSM)
VFX = (LXV, XPP)
XLQ = (RMH, SFD)
HDB = (HVR, PBQ)
PTG = (SKX, GPH)
NTR = (LDG, LKV)
KKL = (NVG, DVP)
XKH = (FTN, LBF)
BDS = (TPD, VKQ)
QKG = (FBR, FBR)
LDS = (HQR, BJC)
KKV = (MPP, FKL)
JRQ = (TRQ, XXT)
MNP = (GQP, GQD)
BTM = (GJQ, TRM)
RPH = (GKN, SCM)
TQD = (RCC, NRG)
FQP = (FKL, MPP)
VFV = (QQB, HPB)
XSL = (CBX, MJM)
GKN = (DPB, PMM)
PBK = (QBH, GQL)
HPB = (PCB, RRM)
MCH = (RTG, XJN)
KSL = (FVL, NTT)
TCJ = (PXP, XQM)
RNF = (JTL, QQV)
BXA = (NFG, CQH)
KVK = (PRP, HLP)
NGF = (SSP, VQJ)
PJN = (BJB, HSV)
SFJ = (BJK, PMX)
CPL = (LDJ, RHB)
MKP = (TRJ, BFM)
RPT = (GRG, RSX)
PRQ = (XPH, DLP)
DSR = (KNT, JBB)
VPB = (RMH, SFD)
QLQ = (MKJ, DKP)
FNJ = (PDB, JRF)
SBH = (QKG, JVC)
PDC = (LDS, DTB)
QFP = (MJQ, HFK)
CTL = (RDD, KVK)
LXS = (BMQ, RMK)
VKF = (QBH, GQL)
HJL = (XCT, FRS)
KTK = (LDF, HPD)
RMK = (HFC, JXC)
MGT = (JFR, HXB)
XLN = (QFL, DXN)
FRQ = (HLR, LCV)
FMB = (KFK, LJK)
NFX = (KTL, QLF)
LMB = (RTG, XJN)
JDG = (TGJ, KBG)
MNJ = (GVJ, SPX)
VMF = (LDG, LKV)
SRN = (GCM, DSK)
JCC = (SVQ, TCJ)
NGJ = (HJL, JQG)
XCT = (SCJ, FDV)
FFK = (RFV, PGG)
NFN = (LJH, RMV)
GHV = (GQK, XMQ)
HFK = (KVM, BBK)
MNL = (GLB, TFR)
BPL = (LHQ, TMX)
LJH = (NCJ, NCJ)
FDV = (CQF, KRQ)
PBZ = (SFL, FVR)
MSB = (PPK, TLM)
GGH = (XKH, MGL)
MPK = (KVK, RDD)
VVR = (XPP, LXV)
NMS = (MKB, RKM)
NXK = (FRQ, KFP)
BSQ = (JCS, MBJ)
XMX = (DSL, CTX)
NHF = (VVK, SHX)
MMC = (CGD, TPJ)
GQP = (TLQ, XXG)
TRH = (FJC, BRM)
RLV = (NSR, KVD)
DKN = (PQH, SMM)
MSX = (LCL, QVF)
SKN = (KKR, RVF)
LSK = (PNV, MRS)
RDD = (PRP, HLP)
DRD = (JBQ, BLT)
GBS = (XDP, LJQ)
TFQ = (BLD, TNX)
QGS = (BNH, HJR)
LJK = (CVF, FMQ)
NCR = (CSQ, LPP)
HJQ = (SVM, TPM)
JCS = (QRP, JCK)
KTV = (VDG, NCM)
MMX = (GDG, JDS)
HVS = (GLJ, RNF)
XMD = (PNV, MRS)
VVK = (XDS, VFV)
FBR = (SMP, SMP)
XKJ = (PQG, FKS)
AAA = (LQS, DMB)
LCV = (FMM, QLH)
PPJ = (HVS, DJS)
DGS = (QBT, NMS)
PFG = (LDF, HPD)
HVR = (RQC, HGD)
QXK = (BMB, XQP)
BTN = (GHD, JXP)
DPR = (TRH, BHR)
KVG = (GNB, TQH)
GFJ = (KFG, SQB)
JCK = (SCB, HCM)
QSM = (DRG, DSM)
XPR = (XPV, MSB)
RNB = (TKX, MKP)
RHB = (TFQ, CJK)
PGQ = (VRF, MTX)
CDH = (GNT, NKP)
BVJ = (PRQ, GFQ)
LTG = (QGX, LVL)
XJR = (QXP, XSL)
JCV = (SPH, DDH)
GDN = (PVP, GBJ)
HNX = (KNT, JBB)
SFN = (MMT, CNX)
RGL = (FTP, NGJ)
VCA = (KRR, HGN)
ZZZ = (DMB, LQS)
GMK = (QLQ, NXD)
LKV = (VMG, SDQ)
PMZ = (CQH, NFG)
KBJ = (GHD, JXP)
PNQ = (VFX, VVR)
TPQ = (GNT, NKP)
SPD = (MHQ, BSQ)
XCV = (DMX, LTG)
BVB = (XKC, RTT)
BQL = (RGX, GRH)
JTS = (RSM, FNJ)
SPP = (BLT, JBQ)
VXT = (CPL, JVR)
MTL = (JHN, TQD)
KMN = (DDN, STH)
RQC = (PDJ, MNL)
FTM = (KHJ, BJZ)
RXT = (FVR, SFL)
QXR = (KVR, TQK)
HJR = (QJH, XJR)
BFS = (GQN, DKN)
TKX = (BFM, TRJ)
DGV = (BDS, XML)
DRG = (FRX, DMN)
VNX = (CNG, PPJ)
CSC = (MDV, KHP)
KMQ = (PJT, NXK)
DVP = (SCS, JTS)
LDF = (XMX, GKG)
QFH = (MTX, VRF)
RTT = (PQS, GBD)
KXR = (BDH, BDH)
SMD = (GHT, GGM)
TMB = (DMH, JJX)
KHP = (FHM, MGD)
TLF = (QMB, VNX)
FRK = (VTP, XSF)
KTL = (CHX, XSR)
GRH = (RLK, MSX)
QMD = (NHV, HXL)
KDV = (VRX, NXX)
LGQ = (VKF, PBK)
FVL = (BLX, LFP)
MMT = (NQQ, KSL)
CKP = (HJQ, HGC)
STH = (BKP, GLT)
QBK = (FPQ, VBV)
CTX = (FMN, PJN)
HHQ = (GBH, MQD)
JHV = (PXG, JPL)
FJC = (GKF, SMC)
TMG = (PFG, KTK)
XXG = (CRC, FGM)
BDH = (PBB, PBB)
FPQ = (CPP, LVR)
BKL = (BCJ, TDR)
GKG = (DSL, CTX)
LVL = (NDB, QSD)
BNH = (QJH, XJR)
TBG = (JVR, CPL)
CQH = (HNX, DSR)
VXD = (TKF, PMD)
MGR = (TRM, GJQ)
PDJ = (GLB, TFR)
HXB = (DCT, TMN)
XSM = (SQM, VDN)
HDR = (XPG, GBN)
GFQ = (XPH, DLP)
XKC = (PQS, GBD)
SBN = (TPQ, CDH)
RSX = (LFV, FQF)
PVP = (XNB, MLT)
LDG = (VMG, SDQ)
LXV = (LKL, GMK)
TKT = (SNC, LGQ)
SHX = (XDS, VFV)
GRG = (FQF, LFV)
QQV = (RST, SPD)
CNX = (NQQ, KSL)
DMX = (LVL, QGX)
CRC = (TVK, TNS)
JXP = (FFR, NCG)
BJC = (RGL, RMX)
BFT = (XQP, BMB)
SKV = (JFR, HXB)
JDB = (QGF, RBJ)
XRK = (NGR, MGG)
FXN = (JCV, VSK)
JJQ = (JSJ, BFS)
DDN = (BKP, GLT)
QBH = (XNX, CKR)
MLT = (PGQ, QFH)
SNC = (VKF, PBK)
FTN = (HDB, PQP)
DPL = (LSL, FXH)
TFS = (DPR, PVJ)
HVQ = (SPX, GVJ)
JJX = (NHF, JKM)
KVR = (HTP, NCR)
MQR = (SND, HMN)
MDD = (PFG, KTK)
PCB = (RXT, RXT)
NLT = (GBS, JLR)
GBD = (SMD, PJR)
NHV = (BXS, FDM)
GHT = (KLV, PTG)
SDQ = (LSX, FPH)
TRJ = (QXR, MVF)
HGC = (TPM, SVM)
MHQ = (JCS, MBJ)
CKX = (HPS, HPS)
SQM = (MXJ, QBK)
PQG = (PPL, PSM)
JRL = (CRL, XGS)
NRG = (DRD, SPP)
GHD = (NCG, FFR)
LBF = (PQP, HDB)
MKK = (KNN, PKP)
CPG = (RHF, BRD)
SQB = (KKT, CQR)
VKQ = (THT, KBB)
KFK = (FMQ, CVF)
PJR = (GHT, GGM)
FXH = (JSB, VPL)
JPQ = (PVG, DHJ)
PDB = (SKN, RMF)
JKX = (VXD, SGB)
DTB = (HQR, BJC)
VCG = (QLV, SFJ)
KVM = (SBN, VVF)
QXS = (TCF, JCC)
CJK = (BLD, TNX)
PKP = (VPB, XLQ)
JMG = (LSL, FXH)
FRX = (JRQ, TPT)
KFF = (FKG, NLT)
DPB = (RHC, KMQ)
SCB = (KJG, RHX)
DHN = (XJC, SBH)
QLH = (GPC, BVB)
PMX = (DRL, SRN)
XMK = (HFK, MJQ)
NDB = (JHV, JKP)
LQS = (TCN, FLS)
PGG = (NJD, QCG)

72
day_08/src/lib.rs Normal file
View File

@@ -0,0 +1,72 @@
use nom::{
bytes::complete::{take_until, take, tag},
character::complete::{
newline, multispace1, alphanumeric1,
},
sequence::{preceded, separated_pair},
multi::separated_list1,
IResult,
};
use std::collections::HashMap;
use std::str::Chars;
fn parse_mapline(input: &str) -> IResult<&str, (&str, (&str, &str))> {
let (input, start) = take(3 as usize)(input)?;
let (input, (left, right)) = preceded(tag(" = ("), separated_pair(alphanumeric1, tag(", "), alphanumeric1))(input)?;
Ok((input, (start, (left, right))))
}
pub fn part1(input: &str) -> String {
let mut lines = input.lines();
let instructions = lines.next().unwrap().chars();
let map = lines.skip(1).map(|line| {
parse_mapline(line).unwrap().1
}).collect::<HashMap<&str, (&str, &str)>>();
let mut total_steps = 0;
let mut position = "AAA";
for _ in 0..100 {
for instruction in instructions.clone() {
total_steps += 1;
let (left, right) = map.get(position).unwrap();
if instruction == 'L' {
position = left;
} else {
position = right;
}
if position == "ZZZ" { return total_steps.to_string(); };
}
};
total_steps.to_string()
}
pub fn part2(input: &str) -> String {
let mut lines = input.lines();
let instructions = lines.next().unwrap().chars();
let map = lines.skip(1).map(|line| {
parse_mapline(line).unwrap().1
}).collect::<HashMap<&str, (&str, &str)>>();
let start_nodes = map.keys().into_iter().filter(|x| x.chars().last().unwrap() == 'A').collect::<Vec<_>>();
let mut total_steps = 0;
let mut positions = start_nodes;
for _ in 0..10000000 {
for instruction in instructions.clone() {
total_steps += 1;
for i in 0..positions.len() {
let (left, right) = map.get(positions[i]).unwrap();
if instruction == 'L' {
positions[i] = &left;
} else {
positions[i] = &right;
}
}
if positions.iter().all(|x| {x.chars().last().unwrap() == 'Z'}) { return total_steps.to_string(); };
}
};
total_steps.to_string()
}
pub mod prelude {
pub use super::part1;
pub use super::part2;
}

48
day_08/src/main.rs Normal file
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use day_08::prelude::*;
fn main() {
let input = include_str!("../input.txt");
println!("{}", part1(input));
println!("{}", part2(input));
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_part1() {
let test_input = "RL
AAA = (BBB, CCC)
BBB = (DDD, EEE)
CCC = (ZZZ, GGG)
DDD = (DDD, DDD)
EEE = (EEE, EEE)
GGG = (GGG, GGG)
ZZZ = (ZZZ, ZZZ)";
assert_eq!(part1(test_input), "2".to_string());
let new_test_input = "LLR
AAA = (BBB, BBB)
BBB = (AAA, ZZZ)
ZZZ = (ZZZ, ZZZ)";
assert_eq!(part1(new_test_input), "6".to_string());
}
#[test]
fn test_part2() {
let test_input = "LR
11A = (11B, XXX)
11B = (XXX, 11Z)
11Z = (11B, XXX)
22A = (22B, XXX)
22B = (22C, 22C)
22C = (22Z, 22Z)
22Z = (22B, 22B)
XXX = (XXX, XXX)";
assert_eq!(part2(test_input), "6".to_string());
}
}