2025(05): part 1 is freshly done

2025/05/part1.py

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+import numpy as np
+
+def read_inventory(filename: str):
+	# Read file as list of strings
+	with open(filename, "r") as fp:
+		data = fp.read().splitlines()
+
+    # Split on the empty line to separate ranges and items
+	splitpoint = data.index("")
+	ranges, items = data[:splitpoint], data[splitpoint + 1:]
+
+	return np.array([ran.split("-") for ran in ranges], dtype=int), np.array(items, dtype=int)
+
+def is_fresh(ranges, item):
+	mins = ranges[:,0]
+	maxs = ranges[:,1]
+	return np.any((mins <= item)*(item <= maxs))
+
+def count_fresh_items(ranges, items):
+	return sum([is_fresh(ranges, item) for item in items])
+
+if __name__ == "__main__":
+	test_ranges, test_items = read_inventory("testinput")
+	# for item in test_items:
+	# 	print(is_fresh(item, test_ranges))
+	assert count_fresh_items(test_ranges, test_items) == 3
+
+	test_freshes = [False, True, False, True, True, False]
+	for idx, item in enumerate(test_items):
+		assert is_fresh(test_ranges, item) == test_freshes[idx]
+
+	ranges, items = read_inventory("input")
+	print(count_fresh_items(ranges, items))