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40 lines
751 B
Python
40 lines
751 B
Python
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"""
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Illustrate how to add the integer without arithmetic operation
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Author: suraj Kumar
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Time Complexity: 1
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https://en.wikipedia.org/wiki/Bitwise_operation
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"""
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def add(first: int, second: int) -> int:
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"""
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Implementation of addition of integer
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Examples:
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>>> add(3, 5)
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8
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>>> add(13, 5)
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18
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>>> add(-7, 2)
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-5
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>>> add(0, -7)
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-7
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>>> add(-321, 0)
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-321
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"""
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while second != 0:
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c = first & second
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first ^= second
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second = c << 1
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return first
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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first = int(input("Enter the first number: ").strip())
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second = int(input("Enter the second number: ").strip())
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print(f"{add(first, second) = }")
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