Update and_gate.py

Add Input Validation and Interactive Mode to N-Input AND Gate. This pull request adds input validation and an interactive mode to the N-input AND gate program. It ensures all inputs are limited to binary values (0 or 1) and provides clear error messages for invalid input. Additionally, users can now interactively enter any number of inputs to see the AND gate output calculated in real time, making the program more robust and user-friendly.

Author: Henry-the-Sun

boolean_algebra/and_gate.py

@@ -29,6 +29,8 @@ def and_gate(input_1: int, input_2: int) -> int:
     >>> and_gate(1, 1)
     1
     """
+    if input_1 not in (0, 1) or input_2 not in (0, 1):
+        raise ValueError("Inputs must be 0 or 1")
     return int(input_1 and input_2)
 
 
@@ -41,10 +43,30 @@ def n_input_and_gate(inputs: list[int]) -> int:
     >>> n_input_and_gate([1, 1, 1, 1, 1])
     1
     """
+    if not inputs:
+        raise ValueError("Input list cannot be empty")
+    if any(x not in (0, 1) for x in inputs):
+        raise ValueError("All inputs must be 0 or 1")
     return int(all(inputs))
 
 
+
 if __name__ == "__main__":
     import doctest
 
     doctest.testmod()
+    print("\n--- N-Input AND Gate Simulator ---")
+    try:
+        n = int(input("Enter the number of inputs: "))
+        inputs = []
+        for i in range(n):
+            val = int(input(f"Enter input {i + 1} (0 or 1): "))
+            if val not in (0, 1):
+                raise ValueError("Inputs must be 0 or 1")
+            inputs.append(val)
+
+        result = n_input_and_gate(inputs)
+        print(f"Inputs: {inputs}")
+        print(f"AND Gate Output: {result}")
+    except ValueError as e:
+        print("Error:", e)