22 lines
486 B
Python
22 lines
486 B
Python
|
def main():
|
||
|
|
with open('input.txt', 'r') as f:
|
||
|
|
stream = f.read()
|
||
|
|
|
||
|
|
for i in range(len(stream)):
|
||
|
|
if validate(stream[i:i+14]):
|
||
|
|
print(i+14)
|
||
|
|
return
|
||
|
|
print('No valid marker')
|
||
|
|
|
||
|
|
|
||
|
|
def validate(part_string: str) -> bool:
|
||
|
|
for i in range(len(part_string)):
|
||
|
|
for j in range(len(part_string)):
|
||
|
|
if i != j and part_string[i] == part_string[j]:
|
||
|
|
return False
|
||
|
|
return True
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
main()
|