From a1cb1a1b16b2304ee2c688e289395c65e4d7a657 Mon Sep 17 00:00:00 2001
From: Piotr Russ <mail@pruss.it>
Date: Sun, 13 Dec 2020 12:27:49 +0100
Subject: day13

---
 day13/day13-1.js | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 day13/day13-1.js

(limited to 'day13/day13-1.js')

diff --git a/day13/day13-1.js b/day13/day13-1.js
new file mode 100644
index 0000000..16458cd
--- /dev/null
+++ b/day13/day13-1.js
@@ -0,0 +1,10 @@
+const data = require('./data')
+const dataLines = data.split(/\n/g).filter(d => d)
+const currentTime = parseInt(dataLines[0])
+const busses = dataLines[1].split(',').filter(d => d !== 'x').map(d => parseInt(d))
+const timetable = busses
+  .map(b => ({'bus': b, 'time': b - currentTime % b}))
+  .sort((a,b) => a.time - b.time)
+
+console.log('Answer: ', timetable[0].bus * timetable[0].time)
+
-- 
cgit v1.2.3