day2 part 1 only

2024/python/day02.py

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+import matrix
+import shared
+import itertools
+import functools
+
+def is_increasing(sequence):
+    return all(sequence[i] < sequence[i+1] for i in range(len(sequence) - 1))
+
+def is_decreasing(sequence):
+    return all(sequence[i] > sequence[i+1] for i in range(len(sequence) - 1))
+
+def parse_line(row):
+    if not(is_increasing(row) or is_decreasing(row)):
+        return 0
+    for previous, current in zip(row, row[1:]):
+        diff = abs(current - previous)
+        if diff >= 1 and diff <= 3:
+            continue
+        return 0
+    return 1
+
+
+# @shared.profile
+def part1(rows):
+    rows = [list(map(int, row.split())) for row in rows]
+    safe = 0
+    for row in rows:
+        safe += parse_line(row)
+    print(safe)
+
+# @shared.profile
+def part2(rows):
+    pass
+
+
+def main():
+    rows = [row for row in shared.load_rows(2)]
+    with shared.elapsed_timer() as elapsed:
+        part1(rows)
+        print("🕒", elapsed())
+
+    rows = [row for row in shared.load_rows(2, True)]
+    with shared.elapsed_timer() as elapsed:
+        part2(rows)
+        print("🕒", elapsed())
+
+
+if __name__ == "__main__":
+    main()

2024/samples/day02.txt

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+7 6 4 2 1
+1 2 7 8 9
+9 7 6 2 1
+1 3 2 4 5
+8 6 4 4 1
+1 3 6 7 9