Charles
30 lines
685 B
Rust
30 lines
685 B
Rust
use advent_of_code_2024::{make_main, SResult};
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use regex::Regex;
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make_main!();
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fn solve(lines: Vec<String>) -> SResult<usize> {
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let mut result = 0;
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let re = Regex::new(r"mul\((?<mul1>\d{1,3}),(?<mul2>\d{1,3})\)")?;
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for line in lines {
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for caps in re.captures_iter(&line) {
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result += caps["mul1"].parse::<usize>().unwrap() * caps["mul2"].parse::<usize>().unwrap();
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}
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}
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Ok(result)
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}
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#[cfg(test)]
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mod tests {
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use advent_of_code_2024::input;
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use super::*;
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#[test]
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fn sample_input() {
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let strings: Vec<String> = input!("d3p1.txt");
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let got = solve(strings).unwrap();
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assert_eq!(got, 161);
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}
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}
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