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  • This is a puzzles and challenges website, the very definition of "restricted by artificial rules". Would you sit down at a monopoly board and then insist that "If this were real life, I would just keep moving until I found a hotel that I considered affordable"?

  • *Jessie Pinkman "Booooo bitch" lol

  • This kata has literally nothing to do with polynomials.

  • It's not specified how trailing zeros in the result should be handled. Is trimming zeros considered incorrect?

  • These two comments are confusing. Please delete the text

    "Two polynomial of order zero fail."
    "Mixed length polynomials fail."

  • Nice use of abs value function, very pythonic, elegant one-liner.

  • Personally I did it because it's the most effective way (that I know of) and that is what programming should aim for.
    And not be restricted by artificial rules.

  • How is this voted clever? It is violating the basic rule.

  • Not a self-contained issue

  • To be mathematically rigourous, you should update how you handle the zero polynomial or the polynomial with 0 as the constant term. This polynomial should be represented by [0] not [] because the polynomial needs to have a constant term in order to exist.

  • I think there is an issue with one of the random tests when len(p1) > len(2) > 0. In this case the test is always expecting a wrong result.

    For example, these are the p1, p2 and the wrong expected result:

    Test.assert_equals( poly_subtract([84, 37, 41, 12, 83, 11, 14, 67, 10, 37, 77, 45],[52, 61]), [-20, -85, 41, 12, 83, 11, 14, 67, 10, 37, 77, 45])

    while the correct expected result should be:

    [32, -24, 41, 12, 83, 11, 14, 67, 10, 37, 77, 45]

  • I'm having some trouble with the random test cases for this kata. I can pass the basic test cases without issue, but the rule appears to differ for the random tests. For every random test, it looks like the solution is p1[x]+ 2*p2[x], while the basic test cases are just p1[x]+p2[x]
    *Random examples:
    [44, 89, 73, 78, 34, 34, 91, 33, 25, 13, 42, 8, 31, 36, 14, 53, 85, 82, 85]
    [3, 68, 34]

    [47, 157, 107, 78, 34, 34, 91, 33, 25, 13, 42, 8, 31, 36, 14, 53, 85, 82, 85] should equal
    [50, 225, 141, 78, 34, 34, 91, 33, 25, 13, 42, 8, 31, 36, 14, 53, 85, 82, 85]

    [23, 45, 83, 58, 32, 5, 39, 37, 3, 29, 35, 83, 12, 8, 67]
    [28, 23, 56, 75, 2, 99, 15, 73, 26, 88, 76, 97, 58, 59]

    [51, 68, 139, 133, 34, 104, 54, 110, 29, 117, 111, 180, 70, 67, 67] should equal
    [79, 91, 195, 208, 36, 203, 69, 183, 55, 205, 187, 277, 128, 126, 67]

  • It's already fixed

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