Day1 completed

day1/common.py

@@ -0,0 +1,17 @@
+
+def parse(filename: str) -> list:
+    with open(filename, 'r') as f:
+        return [l[:-1] for l in f.readlines()]
+    
+def split(parsed: list[str]) -> tuple[list[int], list[int]]:
+    l1 = []
+    l2 = []
+    for line in parsed:
+        c1, c2 = line.split("  ")
+        l1.append(int(c1))
+        l2.append(int(c2))
+    return l1, l2
+
+def split_and_sort(parsed: list[str]) -> tuple[list[int], list[int]]:
+    l1, l2 = split(parsed)
+    return sorted(l1), sorted(l2)

day1/part1.py

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+from common import parse, split_and_sort
+
+
+def main() -> None:
+    l1, l2 = split_and_sort(parse('input'))
+    assert ( len(l1) == len(l2))
+    print(sum(map(lambda i: abs(l1[i] - l2[i]), range(len(l1)))))
+
+
+
+if __name__ == '__main__':
+    main()

day1/part2.py

@@ -0,0 +1,10 @@
+from common import parse, split
+
+
+def main():
+    l1, l2 = split(parse('input'))
+    print(sum(map(lambda x: x * len(list(filter(lambda y: y == x, l2))), l1)))
+
+
+if __name__ == '__main__':
+    main()