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Homework Help: Quick Question about Python concatenation

  1. Jan 13, 2014 #1
    1. The problem statement, all variables and given/known data

    Lets say we have two strings 'movies' and ' goto'. Now the question indicates to return this combination concatenated n times, except if n is negative, it is the same as if it were 0.

    3. The attempt at a solution

    Concatenation n times would yield: n*"movies goto"

    Now if n is negative it performs in the same way you would expect 0 to perform, so would that just return None ?
    Like if n = 0, or n = -4 should it just return None?
  2. jcsd
  3. Jan 13, 2014 #2


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    Don't you have a python interpreter to try it out in? "None" would be a plausible answer, but I don't think it does that. It returns an empty string. Also plausible.
  4. Jan 13, 2014 #3
    I was mainly confused with the wording but I think I got it now. Your right it should return the empty string, instead of none. Thanks.
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