From 7e4982be44b980ccbe00c88a66abd773dba62f1a Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Tue, 1 Jul 2025 14:35:03 +0200
Subject: Day 13 2022

---
 2022/13/b.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 2022/13/b.rs

(limited to '2022/13/b.rs')

diff --git a/2022/13/b.rs b/2022/13/b.rs
new file mode 100644
index 0000000..baaad3f
--- /dev/null
+++ b/2022/13/b.rs
@@ -0,0 +1,26 @@
+use std::cmp::Ordering;
+mod common;
+use common::*;
+
+fn driver(n: i64) -> Packet {
+    Packet::List(vec![Packet::List(vec![Packet::Number(n)])])
+}
+
+fn find_driver(v: &Vec<Packet>, n: i64) -> usize {
+    v.iter()
+     .position(|p| compare(p, &driver(n)) == Ordering::Equal)
+     .unwrap() + 1
+}
+
+fn main() {
+    let mut v = vec![driver(2), driver(6)];
+    let mut line = String::new();
+    while std::io::stdin().read_line(&mut line).unwrap() > 0 {
+        if line.len() > 1 { v.push(parse(line.as_bytes())); }
+        line.clear();
+    }
+
+    v.sort_by(compare);
+
+    println!("{}", find_driver(&v, 2) * find_driver(&v, 6));
+}
-- 
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