The test case "+-2", why is expected 0


  • 0
    T

    Why there is the test case like +-2? It is meaningless.


  • 0
    D

    the result is 0 because this is not a valid string.
    A valid string can have multiple white spaces and an optional sign (+ or -) and then digits.
    This test is interesting if in your loop you don't handle this specific case.


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