• AhmedAKZM 10 years ago + 1 comment

    It is not a valid regex - it has multiple repeats.

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    • abhiranjan Challenge Author 10 years ago + 1 comment

      Please refer to the definition of kleene star given in the problem statement.

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      • AhmedAKZM 10 years ago + 1 comment

        How should we interpret a*b** then? Is a*b** not equivalent to a*b*? I don't mean to sound inpertinent, but allowing multiple repeats makes no sense (to me anyways)...

        Edit: if it makes sense to you, then please explain how.

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        • abhiranjan Challenge Author 10 years ago + 0 comments

          You already answered yourself.

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