adventofcode/2017/04/1passphrases.py
2025-07-25 23:46:53 +00:00

24 lines
749 B
Python
Executable File

#!/usr/bin/env python3
# passphrase validity checker. see file `notes` for details
# only strings with NO DUPLICATE words are valid
if __name__ == '__main__':
total_valid = 0
def check_for_duplicates(list):
has_duplicate = False
for i in range(1, len(list)):
for j in range(i):
if list[i] == list[j]:
has_duplicate = True
return has_duplicate
with open("input", "r", encoding="utf-8") as passphrase_input:
for passphrase in passphrase_input:
is_valid = False
passwords = passphrase.split()
is_valid = not check_for_duplicates(passwords)
if is_valid:
total_valid += 1
print(total_valid)