from solutions.common.file_reader import FileReader
from solutions.day04.passport_validator import PassportValidator
from solutions.day04.passport_parser import PassportParser
if __name__ == '__main__':
puzzle_input = FileReader.to_string("input.txt")
passports = [
PassportParser.create_passport_dictionary(passport_str)
for passport_str in puzzle_input.split("\n\n")
]
valid_passports = sum([
PassportValidator.contains_all_fields(passport)
for passport in passports
])
print("There are {} valid passports".format(valid_passports))
from solutions.common.file_reader import FileReader
def get_nth_spoken_number(starting_numbers, n):
spoken_numbers = {
number: turn + 1
for turn, number in enumerate(starting_numbers[:-1])
}
last_spoken_number = starting_numbers[-1]
for current_turn in range(len(puzzle_input), n):
next_number = 0 if last_spoken_number not in spoken_numbers \
else current_turn - spoken_numbers[last_spoken_number]
spoken_numbers[last_spoken_number] = current_turn
last_spoken_number = next_number
return last_spoken_number
if __name__ == '__main__':
puzzle_input = [
int(x) for x in FileReader.to_string("input.txt").split(",")
]
part1_answer = get_nth_spoken_number(puzzle_input, 2020)
print("[PART 1] 2020th number spoken: {}".format(part1_answer))
part2_answer = get_nth_spoken_number(puzzle_input, 30000000)
print("[PART 2] 30000000th number spoken: {}".format(part2_answer))