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41 lines
710 B
Python
41 lines
710 B
Python
"""
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https://en.wikipedia.org/wiki/Trailing_zero
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"""
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def trailing_zeroes(num: int) -> int:
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"""
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Finding the Trailing Zeroes i.e. zeroes present at the end of number
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Args:
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num: A integer.
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Returns:
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No. of zeroes in the end of an integer.
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>>> trailing_zeroes(1000)
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3
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>>> trailing_zeroes(102983100000)
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5
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>>> trailing_zeroes(0)
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1
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>>> trailing_zeroes(913273)
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0
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"""
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ans = 0
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if num < 0:
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return -1
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if num == 0:
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return 1
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while num > 0:
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if num % 10 == 0:
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ans += 1
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else:
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break
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num /= 10
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return ans
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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