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Merge day 1 solutions

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This commit is contained in:
Bert Peters
2021-12-02 18:50:26 +01:00
parent ed844a997c
commit d08a4e0e4e
1 changed files with 10 additions and 16 deletions
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26
2021/src/day01.rs
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@@ -2,28 +2,22 @@ use std::io::Read;
use crate::common::LineParser; use crate::common::LineParser;
fn read_input(input: &mut dyn Read) -> Vec<u32> { fn part_generic(input: &mut dyn Read, window: usize) -> String {
LineParser::new(input).collect() let numbers: Vec<u32> = LineParser::new(input).collect();
numbers
.windows(window)
.filter(|w| w.last() > w.first())
.count()
.to_string()
} }
pub fn part1(input: &mut dyn Read) -> String { pub fn part1(input: &mut dyn Read) -> String {
let numbers = read_input(input); part_generic(input, 2)
numbers
.windows(2)
.filter(|w| w[1] > w[0])
.count()
.to_string()
} }
pub fn part2(input: &mut dyn Read) -> String { pub fn part2(input: &mut dyn Read) -> String {
let numbers = read_input(input); part_generic(input, 4)
numbers
.windows(4)
.filter(|w| w[3] > w[0])
.count()
.to_string()
} }
#[cfg(test)] #[cfg(test)]