Day 03

day03/part2.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+
+
+def find(is_lowest):
+    lines = (x.strip() for x in open("input.txt"))
+    for bit in range(12):
+        zeros = []
+        ones = []
+        for line in lines:
+            zeros.append(line) if line[bit] == '0' else ones.append(line)
+        lines = zeros if (len(zeros) > len(ones)) != is_lowest else ones
+        if len(lines) <= 1:
+            break
+    return lines[0]
+
+
+gamma = int(''.join(find(True)), 2)
+epsilon = int(''.join(find(False)), 2)
+
+print(gamma * epsilon)