diff options
Diffstat (limited to '2024/3/src')
-rw-r--r-- | 2024/3/src/main.rs | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/2024/3/src/main.rs b/2024/3/src/main.rs deleted file mode 100644 index 0775483..0000000 --- a/2024/3/src/main.rs +++ /dev/null @@ -1,41 +0,0 @@ -use regex::Regex; - -const INPUT_FILE: &str = "input"; - -fn p1(input: &str) { - let re = Regex::new(r"mul\(([0-9]{1,3}),([0-9]{1,3})\)").unwrap(); - - let mut result: u32 = 0; - for (_, [x, y]) in re.captures_iter(input).map(|cs| cs.extract()) { - result += x.parse::<u32>().unwrap() * y.parse::<u32>().unwrap(); - } - - println!("Result: {}", result); -} - -fn p2(input: &str) { - let re = Regex::new(r"do\(\)|don't\(\)|mul\(([0-9]{1,3}),([0-9]{1,3})\)").unwrap(); - - let mut doing = true; - let mut result: u32 = 0; - for cs in re.captures_iter(input) { - let mut it = cs.iter().flatten().map(|m| m.as_str()); - match it.next().unwrap() { - "do()" => doing = true, - "don't()" => doing = false, - mul if doing && mul.starts_with("mul") => { - let mut next = || it.next().unwrap().parse::<u32>().unwrap(); - result += next() * next(); - } - _ => (), - } - } - - println!("Result: {}", result); -} - -fn main() { - let input = std::fs::read_to_string(INPUT_FILE).unwrap(); - p1(&input); - p2(&input); -} |