advent-of-code/2022/01/rust/main.rs

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#![feature(test)]
extern crate test;
#[cfg(test)]
mod tests {
use super::*;
use test::Bencher;
#[bench]
fn bench_a(b: &mut Bencher) {
b.iter(|| part_a());
}
#[bench]
fn bench_b(b: &mut Bencher) {
b.iter(|| part_b());
}
}
fn part_a() {
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let result: u32 = include_str!("../input.txt")
.trim()
.split("\n\n")
.map(|x| x.lines().map(|x| x.parse::<u32>().unwrap()).sum())
.max()
.unwrap();
println!("A: {}", result);
}
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fn part_b() {
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let mut result = include_str!("../input.txt")
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.trim()
.split("\n\n")
.map(|x| x.lines().map(|x| x.parse::<u32>().unwrap()).sum::<u32>())
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.collect::<Vec<u32>>();
result.sort_unstable();
let total = result.into_iter().rev().take(3).sum::<u32>();
println!("B: {}", total);
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}
fn main() {
part_a();
part_b();
}