feat: implement day 06

This commit is contained in:
Lennard Brinkhaus 2023-12-06 09:37:00 +01:00
parent f165c8fa66
commit 39aa33152f
3 changed files with 112 additions and 1 deletions

104
src/day06.rs Normal file
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@ -0,0 +1,104 @@
use std::time::Instant;
pub fn execute_task01(content: &str) {
let start = Instant::now();
let product_correct_races = solve_01(content).unwrap();
let duration = start.elapsed();
assert_eq!(1624896, product_correct_races);
println!("Day06 - Task01 - Duration: {duration:?} - Product Correct Races: {}", product_correct_races)
}
pub fn execute_task02(content: &str) {
let start = Instant::now();
let product_correct_races = solve_02(content).unwrap();
let duration = start.elapsed();
//assert_eq!(322500873, product_correct_races);
println!("Day06 - Task02 - Duration: {duration:?} - Correct Race: {}", product_correct_races)
}
fn solve_01(content: &str) -> anyhow::Result<usize> {
let result = content
.lines()
.map(|line| line
.split_once(":")
.unwrap()
.1
.trim())
.map(|line| line
.split(" ")
.filter(|part| part.len() > 0)
.map(|data| data.parse::<i64>().unwrap())
.collect::<Vec<i64>>())
.collect::<Vec<Vec<i64>>>();
let mut races = vec![];
for i in 0..result[0].len() {
races.push((result[0][i].clone(), result[1][i].clone()))
}
Ok(races
.iter()
.map(|(time, distance)| calc_possible_options(*time, *distance))
.map(|options| options.len())
.product())
}
fn solve_02(content: &str) -> anyhow::Result<usize> {
let result = content
.lines()
.map(|line| line
.split_once(":")
.unwrap()
.1
.trim())
.map(|line| line
.replace(" ", "")
.parse::<i64>().unwrap())
.collect::<Vec<i64>>();
let mut races = vec![(result[0].clone(), result[1].clone())];
Ok(races
.iter()
.map(|(time, distance)| calc_possible_options(*time, *distance))
.map(|options| options.len())
.product())
}
fn calc_possible_options(time: i64, distance: i64) -> Vec<i64> {
let mut data = vec![];
// TODO Performance!!!
for i in 1..time {
let y = i * (time - i);
if y > distance {
data.push(i)
} else if data.len() > 0 {
break
}
}
data
}
#[test]
fn test_solve_01() {
let example = r#"Time: 7 15 30
Distance: 9 40 200"#;
let result = solve_01(example).unwrap();
assert_eq!(288, result);
}
#[test]
fn test_solve_02() {
let example = r#"Time: 7 15 30
Distance: 9 40 200"#;
let result = solve_02(example).unwrap();
assert_eq!(71503, result);
}

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@ -0,0 +1,2 @@
Time: 56 97 78 75
Distance: 546 1927 1131 1139

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@ -4,12 +4,14 @@ mod day02;
mod day03;
mod day04;
mod day05;
mod day06;
const CONTENT01: &'static str = include_str!("input/day01/input.txt");
const CONTENT02: &'static str = include_str!("input/day02/input.txt");
const CONTENT03: &'static str = include_str!("input/day03/input.txt");
const CONTENT04: &'static str = include_str!("input/day04/input.txt");
const CONTENT05: &'static str = include_str!("input/day05/input.txt");
const CONTENT06: &'static str = include_str!("input/day06/input.txt");
fn main() {
day01::execute_task01(CONTENT01);
@ -25,5 +27,8 @@ fn main() {
day04::execute_task02(CONTENT04);
println!();
day05::execute_task01(CONTENT05);
day05::execute_task02(CONTENT05);
//day05::execute_task02(CONTENT05); // Performance Issues
println!();
day06::execute_task01(CONTENT06);
day06::execute_task02(CONTENT06);
}