30 lines
787 B
Rust
30 lines
787 B
Rust
fn score(a: char, b: char) -> i32 {
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match (a, b) {
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('A', 'X') => 3 + 0,
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('A', 'Y') => 1 + 3,
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('A', 'Z') => 2 + 6,
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('B', 'X') => 1 + 0,
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('B', 'Y') => 2 + 3,
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('B', 'Z') => 3 + 6,
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('C', 'X') => 2 + 0,
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('C', 'Y') => 3 + 3,
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('C', 'Z') => 1 + 6,
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_ => todo!()
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}
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}
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let lines: Vec<String> = std::io::stdin().lines().map(|x| x.unwrap()).collect();
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let mut total = 0;
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for line in lines {
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if line.is_empty() { continue; }
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let mut chars = line.chars();
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let a = chars.next().unwrap();
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chars.next();
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let b = chars.next().unwrap();
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total += score(a, b);
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}
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println!("{}", total);
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Ok(())
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}
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