Create norgate.py (TheAlgorithms#7133)

* Create norgate.py

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* Create norgate.py

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* Update boolean_algebra/norgate.py

* Update boolean_algebra/norgate.py

* Update boolean_algebra/norgate.py

* Update boolean_algebra/norgate.py

* Update boolean_algebra/norgate.py

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

Author: 3 people

boolean_algebra/norgate.py

@@ -0,0 +1,46 @@
+""" A NOR Gate is a logic gate in boolean algebra which results to false(0)
+    if any of the input is 1, and True(1) if  both the inputs are 0.
+   Following is the truth table of an NOR Gate:
+   | Input 1 | Input 2 |  Output |
+   |      0      |     0      |      1      |
+   |      0      |     1      |      0      |
+   |      1      |     0      |      0      |
+   |      1      |     1      |      0      |
+"""
+"""Following is the code implementation of the NOR Gate"""
+
+
+def nor_gate(input_1: int, input_2: int) -> int:
+    """
+    >>> nor_gate(0, 0)
+    1
+    >>> nor_gate(0, 1)
+    0
+    >>> nor_gate(1, 0)
+    0
+    >>> nor_gate(1, 1)
+    0
+    >>> nor_gate(0.0, 0.0)
+    1
+    >>> nor_gate(0, -7)
+    0
+    """
+    return int(bool(input_1 == input_2 == 0))
+
+
+def main() -> None:
+    print("Truth Table of NOR Gate:")
+    print("| Input 1 |", " Input 2 |", " Output |")
+    print("|      0      |", "     0      |     ", nor_gate(0, 0), "     |")
+    print("|      0      |", "     1      |     ", nor_gate(0, 1), "     |")
+    print("|      1      |", "     0      |     ", nor_gate(1, 0), "     |")
+    print("|      1      |", "     1      |     ", nor_gate(1, 1), "     |")
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod()
+    main()
+"""Code provided by Akshaj Vishwanathan"""
+"""Reference: https://www.geeksforgeeks.org/logic-gates-in-python/"""