[Python/2018] Move solutions into .py files

Python/2018/02.py

@@ -0,0 +1,30 @@
+from lib import *
+
+input = read_input(2018, 2)
+
+
+def count(box, n):
+    return any(box.count(c) == n for c in set(box))
+
+
+counter = {2: 0, 3: 0}
+for line in input.splitlines():
+    counter[2] += count(line, 2)
+    counter[3] += count(line, 3)
+
+print(counter[2] * counter[3])
+
+
+def compare(a, b):
+    return len(a) == len(b) and sum(x != y for x, y in zip(a, b)) == 1
+
+
+lines = input.splitlines()
+for a in lines:
+    for b in lines:
+        if compare(a, b):
+            print("".join(x for x, y in zip(a, b) if x == y))
+            break
+    else:
+        continue
+    break