ishan/aoc2022
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Added Day 2 part 2

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This commit is contained in:
Ishan Jain 2022-12-02 11:22:09 +05:30
parent 8e83830b1d
commit 468b1c142a
Signed by: ishan
GPG Key ID: 0506DB2A1CC75C27
1 changed files with 22 additions and 21 deletions
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43
src/main.rs
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@ -3,7 +3,7 @@ const INPUTS: [&str; 2] = [
include_str!("../inputs/input.txt"),
];
fn parse(input: &'static str) -> Vec<(Move, Move)> {
fn parse(input: &'static str) -> Vec<(Move, Outcome)> {
input
.trim()
.lines()
@ -18,14 +18,10 @@ fn parse(input: &'static str) -> Vec<(Move, Move)> {
_ => unreachable!(),
};
let y = match b.trim() {
"X" => Move::Rock,
"Y" => Move::Paper,
"Z" => Move::Scissors,
v => {
println!("{:?}", v);
unreachable!();
}
"X" => Outcome::X,
"Y" => Outcome::Y,
"Z" => Outcome::Z,
_ => unreachable!(),
};
(x, y)
})
@ -39,17 +35,22 @@ enum Move {
Scissors = 3,
}
fn calc_score(m1: Move, m2: Move) -> i32 {
match (m1, m2) {
(Move::Rock, Move::Rock) => 3,
(Move::Rock, Move::Paper) => 0,
(Move::Rock, Move::Scissors) => 6,
(Move::Paper, Move::Rock) => 6,
(Move::Paper, Move::Paper) => 3,
(Move::Paper, Move::Scissors) => 0,
(Move::Scissors, Move::Rock) => 0,
(Move::Scissors, Move::Paper) => 6,
(Move::Scissors, Move::Scissors) => 3,
#[derive(Clone, Copy)]
enum Outcome {
X = 0,
Y = 3,
Z = 6,
}
fn calc_move(d1: Outcome, m1: Move) -> Move {
match (d1, m1) {
(Outcome::X, Move::Rock) => Move::Scissors,
(Outcome::X, Move::Paper) => Move::Rock,
(Outcome::X, Move::Scissors) => Move::Paper,
(Outcome::Y, v) => v,
(Outcome::Z, Move::Rock) => Move::Paper,
(Outcome::Z, Move::Paper) => Move::Scissors,
(Outcome::Z, Move::Scissors) => Move::Rock,
}
}
@ -60,7 +61,7 @@ fn main() {
for (a, b) in output {
score += b as i32;
score += calc_score(b, a);
score += calc_move(b, a) as i32;
}
println!("{:?}", score);