diff --git a/day13/part2-minified.py b/day13/part2-minified.py index 014a69a..1430cbf 100644 --- a/day13/part2-minified.py +++ b/day13/part2-minified.py @@ -3,9 +3,7 @@ from math import gcd lcm = lambda a, b: abs(a*b) // gcd(a, b) def merge(a, b, x, y): while b != y: - if b < y: - b += a * ((y-b-1) // a + 1) - else: - y += x * ((b-y-1) // x + 1) + if b < y: b += a * ((y-b-1) // a + 1) + else: y += x * ((b-y-1) // x + 1) return lcm(a, x), b print(reduce(lambda fn, fm: merge(*fn, *fm), ((int(x), -idx) for idx, x in enumerate([x.strip() for x in open("input.txt")][1].split(',')) if x != 'x'), (1, 0))[1])