aoc/2019/04/04.py
2020-12-11 15:16:01 -06:00

27 lines
713 B
Python

passwords = [str(p) for p in range(172851,675869+1)]
def monotonic(password):
digits = list(password)
if digits == sorted(digits):
return True
return False
def at_least_two_adjacent(password):
digits = list(password)
for i, digit in enumerate(digits):
if i+1 == len(digits):
return False
if digits[i+1] == digit:
return True
def exactly_two_adjacent(password):
if not at_least_two_adjacent(password):
return False
digits = list(password)
for digit in digits:
if password.count(digit) == 2:
return True
part1 = [p for p in passwords if monotonic(p) and at_least_two_adjacent(p)]
part2 = [p for p in passwords if monotonic(p) and exactly_two_adjacent(p)]
print(len(part1), len(part2))