From 86bac31392a76da84817eec020d2b84d099b3cc1 Mon Sep 17 00:00:00 2001
From: mhsn <mail@mhsn.net>
Date: Wed, 18 Mar 2026 21:48:13 +0000
Subject: add other challenges support

---
 aoc/2024/11/python.py        | 30 ++++++++++++++++++++++++++++++
 aoc/2024/11/rust/Cargo.lock  |  7 +++++++
 aoc/2024/11/rust/Cargo.toml  |  6 ++++++
 aoc/2024/11/rust/src/main.rs | 43 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 86 insertions(+)
 create mode 100755 aoc/2024/11/python.py
 create mode 100644 aoc/2024/11/rust/Cargo.lock
 create mode 100644 aoc/2024/11/rust/Cargo.toml
 create mode 100644 aoc/2024/11/rust/src/main.rs

(limited to 'aoc/2024/11')

diff --git a/aoc/2024/11/python.py b/aoc/2024/11/python.py
new file mode 100755
index 0000000..37f658e
--- /dev/null
+++ b/aoc/2024/11/python.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+from fileinput import input
+from functools import cache
+from math import floor, log
+
+stones = [int(x) for x in input().readline().split()]
+
+
+@cache
+def blink(s, n):
+    if n == 0:
+        return 1
+
+    if s == 0:
+        return blink(1, n - 1)
+
+    digits = floor(log(s, 10) + 1e-6) + 1
+    if digits % 2 == 0:
+        left, right = divmod(s, 10 ** (digits // 2))
+        return blink(left, n - 1) + blink(right, n - 1)
+
+    return blink(s * 2024, n - 1)
+
+
+silver = sum(blink(s, 25) for s in stones)
+gold = sum(blink(s, 75) for s in stones)
+
+print("silver:", silver)
+print("gold:", gold)
diff --git a/aoc/2024/11/rust/Cargo.lock b/aoc/2024/11/rust/Cargo.lock
new file mode 100644
index 0000000..ac79b17
--- /dev/null
+++ b/aoc/2024/11/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/2024/11/rust/Cargo.toml b/aoc/2024/11/rust/Cargo.toml
new file mode 100644
index 0000000..88e7b42
--- /dev/null
+++ b/aoc/2024/11/rust/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "puzzle"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/aoc/2024/11/rust/src/main.rs b/aoc/2024/11/rust/src/main.rs
new file mode 100644
index 0000000..e352ec4
--- /dev/null
+++ b/aoc/2024/11/rust/src/main.rs
@@ -0,0 +1,43 @@
+use std::{collections::HashMap, io};
+
+fn blink(k @ (s, n): (u64, u64), cache: &mut HashMap<(u64, u64), u64>) -> u64 {
+    if n == 0 {
+        return 1;
+    }
+    if let Some(v) = cache.get(&k) {
+        return *v;
+    }
+
+    // cache this
+    let v = {
+        if s == 0 {
+            return blink((1, n - 1), cache);
+        }
+        let digits = s.ilog10() + 1;
+        let mid = 10u64.pow(digits / 2);
+        if digits % 2 == 0 {
+            blink((s / mid, n - 1), cache) + blink((s % mid, n - 1), cache)
+        } else {
+            blink((s * 2024, n - 1), cache)
+        }
+    };
+
+    *cache.entry(k).or_insert(v)
+}
+
+fn main() -> io::Result<()> {
+    let line = io::stdin().lines().flatten().next().unwrap();
+    let stones = line
+        .split_whitespace()
+        .map(|s| s.parse::<u64>().unwrap())
+        .collect::<Vec<_>>();
+
+    let mut cache = HashMap::new();
+    let silver: u64 = stones.iter().map(|s| blink((*s, 25), &mut cache)).sum();
+    let gold: u64 = stones.iter().map(|s| blink((*s, 75), &mut cache)).sum();
+
+    println!("silver: {silver}");
+    println!("gold: {gold}");
+
+    return Ok(());
+}
-- 
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