From 7efacbda5b875b5580e34e4d46d61c7537c60638 Mon Sep 17 00:00:00 2001
From: Sebastian Seedorf <sese@netlight.com>
Date: Thu, 7 Dec 2023 17:00:55 +0100
Subject: [PATCH] Day 06

---
 day06/input.txt |  2 ++
 day06/part1.py  | 21 +++++++++++++++++++++
 day06/part2.py  | 17 +++++++++++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 day06/input.txt
 create mode 100644 day06/part1.py
 create mode 100644 day06/part2.py

diff --git a/day06/input.txt b/day06/input.txt
new file mode 100644
index 0000000..57f1bf3
--- /dev/null
+++ b/day06/input.txt
@@ -0,0 +1,2 @@
+Time:        42     68     69     85
+Distance:   284   1005   1122   1341
diff --git a/day06/part1.py b/day06/part1.py
new file mode 100644
index 0000000..84ce5c6
--- /dev/null
+++ b/day06/part1.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+import math
+import re
+
+lines = (x.strip() for x in open("input.txt"))
+times = []
+records = []
+
+for line in lines:
+    if line.startswith("Time"):
+        times = tuple(map(int, re.findall("\d+", line)))
+    else:
+        records = tuple(map(int, re.findall("\d+", line)))
+
+result = 1
+for t, r in zip(times, records):
+    pmin = (t-(t**2-4*r)**0.5)/2
+    pmax = (t+(t**2-4*r)**0.5)/2
+    result *= math.floor(pmax) - math.ceil(pmin) + 1
+
+print(result)
diff --git a/day06/part2.py b/day06/part2.py
new file mode 100644
index 0000000..366d34e
--- /dev/null
+++ b/day06/part2.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+import math
+import re
+
+lines = (x.strip() for x in open("input.txt"))
+t = 0
+r = 0
+
+for line in lines:
+    if line.startswith("Time"):
+        t = int(re.sub("[^\d]", "", line))
+    else:
+        r = int(re.sub("[^\d]", "", line))
+
+pmin = (t-(t**2-4*r)**0.5)/2
+pmax = (t+(t**2-4*r)**0.5)/2
+print(math.floor(pmax) - math.ceil(pmin) + 1)