1 files changed, 25 insertions, 0 deletions
diff --git a/2020/09/puzzle-2.py b/2020/09/puzzle-2.py
new file mode 100755
index 0000000..8833f50
--- /dev/null
+++ b/2020/09/puzzle-2.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+import numpy as np
+
+
+def main() -> None:
+	goal = 138879426
+	with open("input", "r") as f:
+		nums = np.array(list(map(int, f.readlines())), dtype=int)
+
+	lp = 0
+	up = 1
+
+	while (x := sum(nums[lp : up + 1])) != goal:
+		if x > goal:
+			up -= 1
+			lp += 1
+		elif x < goal:
+			up += 1
+
+	sorted = np.sort(nums[lp : up + 1])
+	print(sorted[0] + sorted[-1])
+
+
+if __name__ == "__main__":
+	main()