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y2019/p08.py

@@ -0,0 +1,14 @@
+import sys
+
+
+w, h = 25, 6
+text = sys.stdin.read()
+
+count = lambda m: lambda layer: sum(n == m for n in layer)
+
+layers = list(zip(*[(int(n) for n in text.strip())] * w * h))
+min_layer = min(layers, key=count(0))
+print(count(1)(min_layer) * count(2)(min_layer))
+
+px = (' #'[next(n for n in stack if n != 2)] for stack in zip(*layers))
+print('\n'.join(''.join(next(px) for _ in range(w)) for _ in range(h)))