add: more days

src/bin/d3p1.rs

@@ -0,0 +1,29 @@
+use advent_of_code_2024::{make_main, SResult};
+use regex::Regex;
+
+make_main!();
+
+fn solve(lines: Vec<String>) -> SResult<usize> {
+    let mut result = 0;
+    let re = Regex::new(r"mul\((?<mul1>\d{1,3}),(?<mul2>\d{1,3})\)")?;
+    for line in lines {
+        for caps in re.captures_iter(&line) {
+            result += caps["mul1"].parse::<usize>().unwrap() * caps["mul2"].parse::<usize>().unwrap();
+        }
+    }
+    Ok(result)
+}
+
+
+#[cfg(test)]
+mod tests {
+    use advent_of_code_2024::input;
+
+    use super::*;
+    #[test]
+    fn sample_input() {
+        let strings: Vec<String> = input!("d3p1.txt");
+        let got = solve(strings).unwrap();
+        assert_eq!(got, 161);
+    }
+}