🔒 why does this return 1 even though 4-4 = 0

[hallow ore]

@reef condor

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[tawny flame]

You expect valid to not accrue anything for 4 4 because both tests are false.

But the numbers string is two lines: a blank line and a 4 4 line. So the first, empty line has a empty list for nogaps. And all() of an empty sequence is True:

>>> all(())
True
>>> numbers = '''
... 4 4
... '''
>>> numbers.splitlines()
['', '4 4']

So either test would test as True for this blank line. Since you're using an elif, you only test the first one and add 1 for that test.

So you add 1 for the first blank line and 0 for the second 4 4 line. Thus totalling 1.
@reef condor

[reef condor]

Ok ty

so its coz of the newline that counts as a true

[tawny flame]

Effectively. It's the blank lines and thus the empty list of numbers.

[haughty hedge]

wait then why isnt it 2

isnt

"""
4 4
"""

one extra line from

"""
4 4"""

!e

print(repr("""
4 4
"""))

print(repr("""
4 4"""))

[hallow ore]

:white_check_mark: Your 3.12 eval job has completed with return code 0.

001 | '\n4 4\n'
002 | '\n4 4'

[gloomy harness]

'\n    4 4\n    '
'\n    4 4'```

[haughty hedge]

it is

[tawny flame]

!e

'''
4 4
'''.splitlines()

[hallow ore]

:warning: Your 3.12 eval job has completed with return code 0.

[No output]

[gloomy harness]

['', '4 4']```

[tawny flame]

!e

repr("""
4 4
""")

!e

repr("""
4 4
""")

[hallow ore]

:warning: Your 3.12 eval job has completed with return code 0.

[No output]

[gloomy harness]

'\n4 4\n'```

[haughty hedge]

print 😅

[tawny flame]

The short answer: to .splitlines(), the last line may or may not include a newline.

[haughty hedge]

i see

[tawny flame]

!e
Whereas this is different:

print('''
4 4
'''.split('\n'))

[gloomy harness]

Generic error (code: 1): invalid syntax (<string>, line 2)

[hallow ore]

:white_check_mark: Your 3.12 eval job has completed with return code 0.

['', '4 4', '']

[final furnace]

Miss stating AOC from title

||It looks perfectly similar if not exactly same to AOC 2024 D2P1||

[foggy crystal]

Definition of end of file in posix says that all files should end in newline character and then EOF.
So that empty line at the end is seen as not a full line.

[hallow ore]

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