From 81c3c626144d724b6415ca432ea7989cad9a4057 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Sat, 5 Dec 2020 21:11:41 +0000
Subject: [PATCH] Complete day 5.2
---
day-5/src/main.rs | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/day-5/src/main.rs b/day-5/src/main.rs
index 62208ce..81f9d27 100644
--- a/day-5/src/main.rs
+++ b/day-5/src/main.rs
@@ -17,6 +17,26 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
println!("{}", max_id?);
+ // Part 2
+ let mut ids = input
+ .lines()
+ .map(|code| {
+ let (row, col) = find_seat(parse_seatcode(code)?);
+ Ok(row * 8 + col)
+ })
+ .collect::<Result<Vec<usize>, String>>()?;
+ ids.sort();
+
+ let mut previous = ids[0];
+ for id in &ids[1..] {
+ if id - 1 != previous {
+ println!("{}", id);
+ break;
+ } else {
+ previous = *id;
+ }
+ }
+
Ok(())
}