day 13, solve linear equations

lib/aoc.py

@@ -0,0 +1,25 @@
+import re
+
+def nums(s:str) -> list[int]:
+    return list(map(int,re.findall(r'-?\d+',s)))
+
+
+TESTS = [
+    ("", []),
+    ("9738: 7 89 52 75 8 1", [9738, 7, 89, 52, 75, 8, 1]),
+    ("p=62,20 v=85,-14", [62, 20, 85, -14]),
+    ("24 25 28 31 28", [24, 25, 28, 31, 28]),
+    ("how():mul(422,702)'how()'", [422,702]),
+    ("58692       56129", [58692, 56129]),
+    ("Button A: X+16, Y+32", [16, 32]),
+    ("46,51,67,25,72,77,13,96,36,76,52,23", [46,51,67,25,72,77,13,96,36,76,52,23]),
+    ("47|53", [47,53]),
+    ("..........M..........j.............y.....O........", []),
+]
+
+if __name__ == "__main__":
+    for (q,a) in TESTS:
+        assert nums(q) == a
+    a, b = nums("how():mul(422,702)'how()'")
+    assert a == 422
+    assert b == 702