day1

Author: shuckc

2018/day1.py

@@ -0,0 +1,18 @@
+import itertools
+
+def readwords():
+	with open('input/day1.txt') as f:
+		for line in f.read().splitlines():
+			yield int(line.strip())
+
+print(sum(readwords()))
+
+
+last = 0
+p = set([last])
+for i in itertools.cycle(readwords()):
+	last += i
+	if last in p:
+		print(last)
+		break
+	p.add(last)