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update day7

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This commit is contained in:
Andrew Glaze 2023-12-18 09:38:38 -05:00
parent 593851daee
commit 1c4bf97e07
7 changed files with 216 additions and 198 deletions
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7
Cargo.lock generated
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@ -8,6 +8,7 @@ version = "0.1.0"
dependencies = [
"aoc-runner",
"aoc-runner-derive",
"array2d",
"itertools",
"rust-crypto",
]
@ -41,6 +42,12 @@ dependencies = [
"serde_json",
]
[[package]]
name = "array2d"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d8b39cb2c1bf5a7c0dd097aa95ab859cf87dab5a4328900f5388942dc1889f74"
[[package]]
name = "either"
version = "1.9.0"

1
Cargo.toml
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@ -11,3 +11,4 @@ rust-crypto = "0.2.36"
aoc-runner = "0.3.0"
aoc-runner-derive = "0.3.0"
itertools = "0.12.0"
array2d = "0.3.0"

7
old/day07/Cargo.lock generated
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@ -1,7 +0,0 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "day07"
version = "0.1.0"

8
old/day07/Cargo.toml
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@ -1,8 +0,0 @@
[package]
name = "day07"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

183
old/day07/src/main.rs
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@ -1,183 +0,0 @@
use std::{fs, collections::HashMap};
fn main() {
let input = fs::read_to_string("input.txt").unwrap();
let mut input: Vec<_> = input.split('\n')
.map(|line| line.split(' ').collect::<Vec<_>>())
.collect();
for line in 0..input.len() {
let hand = input[line][0];
if hand == "JJJJJ" {
input[line].push("7");
continue;
}
let mut card_freq: HashMap<char, i16> = HashMap::new();
let joker_count: i16 = hand.chars().filter(|c| c == &'J').count().try_into().unwrap();
for card in hand.chars().filter(|c| c != &'J') {
card_freq.entry(card)
.and_modify(|count| *count += 1)
.or_insert(1);
}
// The most helpful place for the jokers will always be with the max card count
let max = card_freq.clone().into_iter().max_by(|a, b| a.1.cmp(&b.1)).unwrap();
card_freq.entry(max.0)
.and_modify(|count| *count += joker_count);
let mut set_count: HashMap<i16, i16> = HashMap::new();
for i in 1..=5 {
let card_count = card_freq.values().filter(|x| **x == i).count().try_into().unwrap();
if card_count != 0 {
set_count.insert(i, card_count);
}
}
let power = match set_count {
x if x.contains_key(&5) => "7",
x if x.contains_key(&4) => "6",
x if x.contains_key(&3) && x.contains_key(&2) => "5",
x if x.contains_key(&3) => "4",
x if x.get(&2).unwrap_or(&0) >= &2 => "3",
x if x.get(&2).unwrap_or(&0) == &1 => "2",
HashMap { .. } => "1"
};
input[line].push(power);
}
input.sort_by(|lhs, rhs| {
let lhs_power: i32 = lhs[2].parse().unwrap();
let rhs_power: i32 = rhs[2].parse().unwrap();
if lhs_power != rhs_power {
return lhs_power.cmp(&rhs_power);
}
let lhs_hand: Vec<i32> = lhs[0].chars().map(card_value).collect();
let rhs_hand: Vec<i32> = rhs[0].chars().map(card_value).collect();
for i in 0..5 {
if lhs_hand[i] == rhs_hand[i] { continue; }
return lhs_hand[i].cmp(&rhs_hand[i]);
}
panic!("Should not be reachable");
});
let mut total_winnings = 0;
for i in 0..input.len() {
let bid: usize = input[i][1].parse().unwrap();
total_winnings += (i + 1) * bid;
}
println!("{}", total_winnings);
}
fn card_value(card: char) -> i32 {
match card {
'A' => 13,
'K' => 12,
'Q' => 11,
'T' => 10,
'9' => 9,
'8' => 8,
'7' => 7,
'6' => 6,
'5' => 5,
'4' => 4,
'3' => 3,
'2' => 2,
'J' => 1,
_ => panic!("invalid card")
}
}
// use std::{fs, collections::HashMap};
// fn main() {
// let input = fs::read_to_string("input.txt").unwrap();
// let mut input: Vec<_> = input.split('\n')
// .map(|line| line.split(' ').collect::<Vec<_>>())
// .collect();
// for line in 0..input.len() {
// let hand = input[line][0];
// let mut card_freq: HashMap<char, i16> = HashMap::new();
// for card in hand.chars() {
// card_freq.entry(card)
// .and_modify(|count| *count += 1)
// .or_insert(1);
// }
// let mut set_count: HashMap<i16, i16> = HashMap::new();
// for i in 1..=5 {
// let card_count = card_freq.values().filter(|x| **x == i).count().try_into().unwrap();
// if card_count != 0 {
// set_count.insert(i, card_count);
// }
// }
// let power = match set_count {
// x if x.contains_key(&5) => "7",
// x if x.contains_key(&4) => "6",
// x if x.contains_key(&3) && x.contains_key(&2) => "5",
// x if x.contains_key(&3) => "4",
// x if x.get(&2).unwrap_or(&0) >= &2 => "3",
// x if x.get(&2).unwrap_or(&0) == &1 => "2",
// HashMap { .. } => "1"
// };
// input[line].push(power);
// }
// input.sort_by(|lhs, rhs| {
// let lhs_power: i32 = lhs[2].parse().unwrap();
// let rhs_power: i32 = rhs[2].parse().unwrap();
// if lhs_power != rhs_power {
// return lhs_power.cmp(&rhs_power);
// }
// let lhs_hand: Vec<i32> = lhs[0].chars().map(card_value).collect();
// let rhs_hand: Vec<i32> = rhs[0].chars().map(card_value).collect();
// for i in 0..5 {
// if lhs_hand[i] == rhs_hand[i] { continue; }
// return lhs_hand[i].cmp(&rhs_hand[i]);
// }
// panic!("Should not be reachable");
// });
// let mut total_winnings = 0;
// for i in 0..input.len() {
// let bid: usize = input[i][1].parse().unwrap();
// total_winnings += (i + 1) * bid;
// }
// println!("{}", total_winnings);
// }
// fn card_value(card: char) -> i32 {
// match card {
// 'A' => 13,
// 'K' => 12,
// 'Q' => 11,
// 'J' => 10,
// 'T' => 9,
// '9' => 8,
// '8' => 7,
// '7' => 6,
// '6' => 5,
// '5' => 4,
// '4' => 3,
// '3' => 2,
// '2' => 1,
// _ => panic!("invalid card")
// }
// }

207
src/day7.rs Normal file
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@ -0,0 +1,207 @@
use std::collections::HashMap;
use aoc_runner_derive::{aoc, aoc_generator};
#[aoc_generator(day7)]
fn parse(input: &str) -> Vec<Vec<String>> {
let input: Vec<Vec<String>> = input.split('\n')
.map(|line| line.split(' ').map(|x| x.into()).collect::<Vec<String>>())
.collect::<Vec<_>>();
input
}
#[aoc(day7, part1)]
fn part1(input: &Vec<Vec<String>>) -> usize {
let mut tmp: Vec<Vec<String>> = Vec::new();
input.clone_into(&mut tmp);
let mut input = tmp;
for line in 0..input.len() {
let hand = &input[line][0];
let mut card_freq: HashMap<char, i16> = HashMap::new();
for card in hand.chars() {
card_freq.entry(card)
.and_modify(|count| *count += 1)
.or_insert(1);
}
let mut set_count: HashMap<i16, i16> = HashMap::new();
for i in 1..=5 {
let card_count = card_freq.values().filter(|x| **x == i).count().try_into().unwrap();
if card_count != 0 {
set_count.insert(i, card_count);
}
}
let power = match set_count {
x if x.contains_key(&5) => "7",
x if x.contains_key(&4) => "6",
x if x.contains_key(&3) && x.contains_key(&2) => "5",
x if x.contains_key(&3) => "4",
x if x.get(&2).unwrap_or(&0) >= &2 => "3",
x if x.get(&2).unwrap_or(&0) == &1 => "2",
HashMap { .. } => "1"
};
input[line].push(power.into());
}
input.sort_by(|lhs, rhs| {
let lhs_power: i32 = lhs[2].parse().unwrap();
let rhs_power: i32 = rhs[2].parse().unwrap();
if lhs_power != rhs_power {
return lhs_power.cmp(&rhs_power);
}
let lhs_hand: Vec<i32> = lhs[0].chars().map(card_value).collect();
let rhs_hand: Vec<i32> = rhs[0].chars().map(card_value).collect();
for i in 0..5 {
if lhs_hand[i] == rhs_hand[i] { continue; }
return lhs_hand[i].cmp(&rhs_hand[i]);
}
panic!("Should not be reachable");
});
let mut total_winnings = 0;
for i in 0..input.len() {
let bid: usize = input[i][1].parse().unwrap();
total_winnings += (i + 1) * bid;
}
total_winnings
}
fn card_value(card: char) -> i32 {
match card {
'A' => 13,
'K' => 12,
'Q' => 11,
'J' => 10,
'T' => 9,
'9' => 8,
'8' => 7,
'7' => 6,
'6' => 5,
'5' => 4,
'4' => 3,
'3' => 2,
'2' => 1,
_ => panic!("invalid card")
}
}
#[aoc(day7, part2)]
fn part2(input: &Vec<Vec<String>>) -> usize {
let mut tmp: Vec<Vec<String>> = Vec::new();
input.clone_into(&mut tmp);
let mut input = tmp;
for line in 0..input.len() {
let hand = &input[line][0];
if hand == "JJJJJ" {
input[line].push("7".to_string());
continue;
}
let mut card_freq: HashMap<char, i16> = HashMap::new();
let joker_count: i16 = hand.chars().filter(|c| c == &'J').count().try_into().unwrap();
for card in hand.chars().filter(|c| c != &'J') {
card_freq.entry(card)
.and_modify(|count| *count += 1)
.or_insert(1);
}
// The most helpful place for the jokers will always be with the max card count
let max = card_freq.clone().into_iter().max_by(|a, b| a.1.cmp(&b.1)).unwrap();
card_freq.entry(max.0)
.and_modify(|count| *count += joker_count);
let mut set_count: HashMap<i16, i16> = HashMap::new();
for i in 1..=5 {
let card_count = card_freq.values().filter(|x| **x == i).count().try_into().unwrap();
if card_count != 0 {
set_count.insert(i, card_count);
}
}
let power = match set_count {
x if x.contains_key(&5) => "7",
x if x.contains_key(&4) => "6",
x if x.contains_key(&3) && x.contains_key(&2) => "5",
x if x.contains_key(&3) => "4",
x if x.get(&2).unwrap_or(&0) >= &2 => "3",
x if x.get(&2).unwrap_or(&0) == &1 => "2",
HashMap { .. } => "1"
};
input[line].push(power.to_string());
}
input.sort_by(|lhs, rhs| {
let lhs_power: i32 = lhs[2].parse().unwrap();
let rhs_power: i32 = rhs[2].parse().unwrap();
if lhs_power != rhs_power {
return lhs_power.cmp(&rhs_power);
}
let lhs_hand: Vec<i32> = lhs[0].chars().map(card_value_pt2).collect();
let rhs_hand: Vec<i32> = rhs[0].chars().map(card_value_pt2).collect();
for i in 0..5 {
if lhs_hand[i] == rhs_hand[i] { continue; }
return lhs_hand[i].cmp(&rhs_hand[i]);
}
panic!("Should not be reachable");
});
let mut total_winnings = 0;
for i in 0..input.len() {
let bid: usize = input[i][1].parse().unwrap();
total_winnings += (i + 1) * bid;
}
total_winnings
}
fn card_value_pt2(card: char) -> i32 {
match card {
'A' => 13,
'K' => 12,
'Q' => 11,
'T' => 10,
'9' => 9,
'8' => 8,
'7' => 7,
'6' => 6,
'5' => 5,
'4' => 4,
'3' => 3,
'2' => 2,
'J' => 1,
_ => panic!("invalid card")
}
}
#[cfg(test)]
mod tests {
use super::*;
const EX: &str = r"32T3K 765
T55J5 684
KK677 28
KTJJT 220
QQQJA 483";
#[test]
fn part1_example() {
assert_eq!(part1(&parse(EX)), 6440);
}
#[test]
fn part2_example() {
assert_eq!(part2(&parse(EX)), 5905);
}
}

1
src/lib.rs
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@ -1,3 +1,4 @@
mod day7;
mod day6;
mod day5;
mod day3;