Day 01

day01/part2.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+import re
+
+STRINGS = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]
+
+lines = (x.strip() for x in open("input.txt"))
+total = 0
+digitRegex = f"(\\d|{'|'.join(STRINGS)})"
+regexFirst = re.compile(f"^.*?(\\d|{'|'.join(STRINGS)})")
+regexLast = re.compile(f"^.*(\\d|{'|'.join(STRINGS)})")
+
+def parse(value):
+    return str(STRINGS.index(value) + 1) if value in STRINGS else value
+
+for line in lines:
+    first = parse(regexFirst.match(line).group(1))
+    last = parse(regexLast.match(line).group(1))
+    total += int(first + last)
+
+print(total)