5 files changed, 119 insertions, 0 deletions
diff --git a/aoc/2024/03/python.py b/aoc/2024/03/python.py
new file mode 100755
index 0000000..f456580
--- /dev/null
+++ b/aoc/2024/03/python.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import re
+from fileinput import input
+
+s = "\n".join(input())
+
+silver = sum(int(x) * int(y) for x, y in re.findall(r"mul\((\d{1,3}),(\d{1,3})\)", s))
+
+gold = 0
+active = True
+for g in re.findall(r"(?:mul\((\d{1,3}),(\d{1,3})\))|(don't\(\))|(do\(\))", s):
+    match g, active:
+        case (x, y, "", ""), True:
+            gold += int(x) * int(y)
+        case (_, _, "don't()", _), _:
+            active = False
+        case (_, _, _, "do()"), _:
+            active = True
+
+
+print("silver:", silver)
+print("gold:", gold)
diff --git a/aoc/2024/03/raku.raku b/aoc/2024/03/raku.raku
new file mode 100755
index 0000000..38f040e
--- /dev/null
+++ b/aoc/2024/03/raku.raku
@@ -0,0 +1,17 @@
+#!/usr/bin/env raku
+
+my $p = slurp;
+
+sub p2 (($on, $tot), ($i, |n)) { 
+	given $i {
+		when "mul"   { return ($on , $tot + [*] $on, |n.list) }
+		when "do"    { return (1   , $tot) }
+		when "don't" { return (0   , $tot) }
+	}
+};
+
+$p ~~ m:g/ mul\((\d ** 1..3)\,(\d ** 1..3)\) /;
+say "silver: ", $/.map({ [*] $_.list }).sum;
+
+$p ~~ m:g/ (mul)\((\d ** 1..3)\,(\d ** 1..3)\) | (do)\(\) | (don\'t)\(\) /;
+say "gold: ", ([[&p2]] <1 0>, |$/)[1];
diff --git a/aoc/2024/03/rust/Cargo.lock b/aoc/2024/03/rust/Cargo.lock
new file mode 100644
index 0000000..ac79b17
--- /dev/null
+++ b/aoc/2024/03/rust/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "puzzle"
+version = "0.1.0"
diff --git a/aoc/2024/03/rust/Cargo.toml b/aoc/2024/03/rust/Cargo.toml
new file mode 100644
index 0000000..5a7c59b
--- /dev/null
+++ b/aoc/2024/03/rust/Cargo.toml
@@ -0,0 +1,4 @@
+[package]
+name = "puzzle"
+version = "0.1.0"
+edition = "2021"
diff --git a/aoc/2024/03/rust/src/main.rs b/aoc/2024/03/rust/src/main.rs
new file mode 100644
index 0000000..b268463
--- /dev/null
+++ b/aoc/2024/03/rust/src/main.rs
@@ -0,0 +1,68 @@
+use std::io::{self, Read};
+
+#[derive(Debug)]
+enum Instruction {
+    Do,
+    Dont,
+    Mul(u64, u64),
+}
+
+impl From<&Instruction> for u64 {
+    fn from(val: &Instruction) -> Self {
+        match val {
+            Instruction::Mul(x, y) => x * y,
+            _ => 0,
+        }
+    }
+}
+
+fn main() -> io::Result<()> {
+    let mut program = String::new();
+    io::stdin().read_to_string(&mut program)?;
+
+    let instrs = (0..program.len())
+        .filter_map(|idx| {
+            let next = &program[idx..];
+            if next.starts_with("do()") {
+                Some(Instruction::Do)
+            } else if next.starts_with("don't()") {
+                Some(Instruction::Dont)
+            } else if next.starts_with("mul(") {
+                let mut first = 0;
+                let mut curr = 0;
+
+                for ch in next.bytes().skip(4) {
+                    match (ch, curr) {
+                        ((b'0'..=b'9'), _) => curr = curr * 10 + (ch - b'0') as u64,
+                        (_, 0) => return None,
+                        (b',', _) => {
+                            first = curr;
+                            curr = 0;
+                        }
+                        (b')', _) => {
+                            return Some(Instruction::Mul(first, curr));
+                        }
+                        _ => return None,
+                    };
+                }
+                None
+            } else {
+                None
+            }
+        })
+        .collect::<Vec<_>>();
+
+    let silver: u64 = instrs.iter().map(u64::from).sum();
+    let (gold, _) = instrs
+        .iter()
+        .fold((0 as u64, true), |(acc, on), instr| match (instr, on) {
+            (Instruction::Do, _) => (acc, true),
+            (Instruction::Dont, _) => (acc, false),
+            (Instruction::Mul(_, _), true) => (acc + u64::from(instr), true),
+            _ => (acc, on),
+        });
+    println!("silver: {silver}");
+    println!("gold: {gold}");
+
+    return Ok(());
+}