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* Create multiplexer.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Doctests should show how the algorithm fails --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Christian Clauss <cclauss@me.com>
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
def mux(input0: int, input1: int, select: int) -> int:
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"""
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Implement a 2-to-1 Multiplexer.
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:param input0: The first input value (0 or 1).
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:param input1: The second input value (0 or 1).
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:param select: The select signal (0 or 1) to choose between input0 and input1.
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:return: The output based on the select signal. input1 if select else input0.
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https://www.electrically4u.com/solved-problems-on-multiplexer
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https://en.wikipedia.org/wiki/Multiplexer
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>>> mux(0, 1, 0)
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0
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>>> mux(0, 1, 1)
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1
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>>> mux(1, 0, 0)
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1
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>>> mux(1, 0, 1)
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0
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>>> mux(2, 1, 0)
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Traceback (most recent call last):
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...
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ValueError: Inputs and select signal must be 0 or 1
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>>> mux(0, -1, 0)
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Traceback (most recent call last):
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...
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ValueError: Inputs and select signal must be 0 or 1
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>>> mux(0, 1, 1.1)
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Traceback (most recent call last):
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...
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ValueError: Inputs and select signal must be 0 or 1
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"""
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if all(i in (0, 1) for i in (input0, input1, select)):
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return input1 if select else input0
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raise ValueError("Inputs and select signal must be 0 or 1")
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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