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  • Count-Trailing-Zeros(x) ----- Can I use Log(x) to see if X is equal to

    From henhanna@gmail.com@21:1/5 to All on Sun Sep 18 08:57:35 2022
    --------- (in Python) is there a simple string function that counts the leftmost 0's ???



    Count how many zeros are at the end of your int:

    def end_zeros(num):
    s = str(num)
    return len(s) - len(s.rstrip("0"))


    print(end_zeros(10)) # == 1
    print(end_zeros(101)) # == 0
    print(end_zeros(245)) # == 0
    print(end_zeros(100100)) # == 2


    ---------------- Writing a loop (using % and // ) feels like [reinventing the wheel] and seems intrinsically wrong. --- (it must be unPythonic)


    i like this code (above) because it's not reinventing the wheel --- the Python implementors have already done the loop (using % and // ), so i'm just using that efficient tool (routine).

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