48 lines
1.1 KiB
Rust
48 lines
1.1 KiB
Rust
#![feature(iter_array_chunks, test)]
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extern crate test;
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use aoc2022::{boilerplate, common::*};
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const DAY: usize = 2;
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#[rustfmt::skip]
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fn round(input: [u8; 4]) -> usize {
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match (input[0], input[2]) {
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(b'A', b'X') => 4, (b'A', b'Y') => 8, (b'A', b'Z') => 3, (b'B', b'X') => 1, (b'B', b'Y') => 5, (b'B', b'Z') => 9, (b'C', b'X') => 7, (b'C', b'Y') => 2, (b'C', b'Z') => 6,
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_ => unreachable!(),
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}
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}
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#[rustfmt::skip]
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fn round_p2(input: [u8; 4]) -> usize {
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match (input[0], input[2]) {
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(b'A', b'X') => 3, (b'A', b'Y') => 4, (b'A', b'Z') => 8, (b'B', b'X') => 1, (b'B', b'Y') => 5, (b'B', b'Z') => 9, (b'C', b'X') => 2, (b'C', b'Y') => 6, (b'C', b'Z') => 7,
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_ => unreachable!(),
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}
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}
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fn parse_input(raw: &str) -> &str {
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raw
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}
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fn part1(parsed: &str) -> usize {
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parsed.bytes().array_chunks().map(round).sum()
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}
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fn part2(parsed: &str) -> usize {
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parsed.bytes().array_chunks().map(round_p2).sum()
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}
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boilerplate! {
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TEST_INPUT == "A Y
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B X
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C Z
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",
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tests: {
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part1: { TEST_INPUT => 15 },
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part2: { TEST_INPUT => 12 },
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},
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bench1 == 13268,
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bench2 == 15508,
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bench_parse: str::len => 10000,
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}
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