34 lines
677 B
Rust
34 lines
677 B
Rust
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use std::env;
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use std::fs::File;
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use std::io::BufReader;
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use std::io::BufRead;
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fn score(line: String) -> i64 {
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match line.trim() {
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"A X" => 1 + 3,
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"A Y" => 2 + 6,
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"A Z" => 3 + 0,
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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" => 1 + 6,
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"C Y" => 2 + 0,
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"C Z" => 3 + 3,
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_other => 0,
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}
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}
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fn main() {
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let args: Vec<String> = env::args().collect();
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let input = &args[1];
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let reader = BufReader::new(File::open(input).expect("where file?"));
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let mut sum = 0;
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for line in reader.lines() {
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sum += score(line.unwrap());
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}
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println!("Sum: {}", sum);
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}
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