62 lines
1.4 KiB
Rust
62 lines
1.4 KiB
Rust
use crate::utilities::*;
|
|
pub fn part1(input: &str) -> usize {
|
|
parse(input).iter().map(calc_score).sum()
|
|
}
|
|
|
|
pub fn parse(input: &str) -> Vec<Strategy> {
|
|
input
|
|
.lines()
|
|
.map(|line| {
|
|
let elf = match line.as_bytes()[0] {
|
|
b'A' => Play::Rock,
|
|
b'B' => Play::Paper,
|
|
b'C' => Play::Scissors,
|
|
_ => panic!("your opponent not playing defined strategy!"),
|
|
};
|
|
let you = match line.as_bytes()[2] {
|
|
b'X' => Play::Rock,
|
|
b'Y' => Play::Paper,
|
|
b'Z' => Play::Scissors,
|
|
_ => panic!("you are not playing defined strategy!"),
|
|
};
|
|
Strategy { elf, you }
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn test_part1() {
|
|
let input = "A Y
|
|
B X
|
|
C Z";
|
|
assert_eq!(part1(input), 15);
|
|
}
|
|
|
|
#[test]
|
|
fn test_parse() {
|
|
let input = "A Y
|
|
B X
|
|
C Z";
|
|
assert_eq!(
|
|
parse(input),
|
|
vec![
|
|
Strategy {
|
|
elf: Play::Rock,
|
|
you: Play::Paper
|
|
},
|
|
Strategy {
|
|
elf: Play::Paper,
|
|
you: Play::Rock
|
|
},
|
|
Strategy {
|
|
elf: Play::Scissors,
|
|
you: Play::Scissors
|
|
}
|
|
]
|
|
);
|
|
}
|
|
}
|