39 lines
1022 B
Rust
39 lines
1022 B
Rust
fn get_elves(raw: &str) -> Vec<Vec<u32>> {
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raw.split("\n\n")
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.map(|raw_elf| {
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raw_elf
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.split('\n')
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.filter(|value| value.len() > 0)
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.map(move |value| value.parse::<u32>().unwrap())
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.collect::<Vec<u32>>()
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})
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.collect()
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}
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fn get_elf_totals(elves: &Vec<Vec<u32>>) -> Vec<u32> {
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elves
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.clone()
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.into_iter()
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.map(|elf| {
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elf.into_iter()
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.reduce(|accum, item| accum + item)
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.unwrap()
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})
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.collect()
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}
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fn main() {
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let file_str = include_str!("input.txt"); //fs::read_to_string("input.txt")?;
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let elves = get_elves(&file_str);
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let mut totals: Vec<u32> = get_elf_totals(&elves);
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totals.sort();
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totals.reverse();
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let most = totals[0];
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let top3 = totals[0] + totals[1] + totals[2];
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println!("Part 1: Most calories for one elf: {}", most);
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println!("Part 2: Calories for top three elves: {}", top3);
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}
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