Day 16

day16/part1.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+from day16.shared import parse_packets
+
+lines = (x.strip() for x in open("input.txt"))
+
+
+def sum_version(exprs):
+    return sum(expr[0] + (sum_version(expr[2]) if isinstance(expr[2], list) else 0) for expr in exprs)
+
+
+for line in lines:
+    print("NEW LINE:", line)
+    if line[0] == '#':
+        continue
+    bin_string = ''.join(bin(int(c, 16))[2:].zfill(4) for c in line)
+    parsed = parse_packets(bin_string)
+    print(sum_version(parsed))
+