Day 06

day06/part2.py

@@ -0,0 +1,8 @@
+#!/usr/bin/env python3
+import re
+
+lines = (x.strip() for x in open("input.txt"))
+
+for line in lines:
+    regex = r"(\w)" + "".join("(?!" + "|".join("\\{0}".format(j) for j in range(1, i+2)) + r")(\w)" for i in range(13))
+    print(re.search(regex, line).end())