perimeters clear solution for Paper Dice by ogoro - python coding challenges

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perimeters solution in Clear category for Paper Dice by ogoro

PERIMETERS = ('1265126', '1364136', '2354235')

def paper_dice(paper):
    rows = [row.strip() for row in paper]
    columns = [''.join(c).strip() for c in zip(*paper)]

    for line in rows + columns:
        if not any(line in perimeter or line[::-1] in perimeter for perimeter in PERIMETERS):
            return False

    return True

Jan. 19, 2021

Comments:

ogoro on Jan. 20, 2021, 1:18 a.m.
which led to: <a href="https://py.checkio.org/mission/paper-dice/publications/ogoro/python-3/perimeters-1-liner/">perimeters 1-liner)</a>

Phil15 on Jan. 20, 2021, 10:45 a.m.
Well it is clearly nicely short. After looking tests, which seem to be strong enough, I must admit it has to be right. Then I thought about it... And while I easily admit than every line has to be in a "perimeter" in one way or the other, I have hard time understanding why it is sufficient to have a proper paper dice. Did you read that somewhere?

ogoro on Jan. 20, 2021, 12:44 p.m.
no, i did not read it anywhere - just tried to implement the logic of checking a real dice) i felt the same surprise when this idea seemed to work)) thank you very much for the feedback!

tom-tom_f993b3abc4814d4cb5476e on Jan. 31, 2021, 10:25 a.m.
This solution fails for `['1']`. On the other hand, precondition like <pre class='brush: python'>sorted(c for c in ''.join(paper) if c != ' ') == list('123456') </pre> seems reasonable. Or not? All the tests currently satisfy this precondition.

sawako.oono on July 2, 2021, 4:30 p.m.
It doesn't pass the test case below : <pre class='brush: python'>paper_dice([" 12","453"," 6 "])==False </pre> I like the simplicity of this solution and this seems resilient as far as the net structure isn't too odd.\ Combining this with testing net shape would give perfect.

tom-tom_f993b3abc4814d4cb5476e on July 2, 2021, 4:53 p.m.
This test case is legal by any means. Should be added to the tests.

sawako.oono on July 3, 2021, 5:55 a.m.
Created pull-request for adding it to verification.

tom-tom_f993b3abc4814d4cb5476e on Jan. 30, 2021, 9:16 p.m.
Nice!

ogoro on Jan. 31, 2021, 11:17 p.m.
many thanks)

kdim on Feb. 15, 2021, 6:20 p.m.
Strong!

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