[mypy] Add/fix type annotations for bit manipulation algorithms

bit_manipulation/binary_and_operator.py

@@ -1,7 +1,7 @@
 # https://www.tutorialspoint.com/python3/bitwise_operators_example.htm
 
 
-def binary_and(a: int, b: int):
+def binary_and(a: int, b: int) -> str:
     """
     Take in 2 integers, convert them to binary,
     return a binary number that is the

bit_manipulation/binary_or_operator.py

@@ -1,7 +1,7 @@
 # https://www.tutorialspoint.com/python3/bitwise_operators_example.htm
 
 
-def binary_or(a: int, b: int):
+def binary_or(a: int, b: int) -> str:
     """
     Take in 2 integers, convert them to binary, and return a binary number that is the
     result of a binary or operation on the integers provided.

bit_manipulation/binary_xor_operator.py

@@ -1,7 +1,7 @@
 # https://www.tutorialspoint.com/python3/bitwise_operators_example.htm
 
 
-def binary_xor(a: int, b: int):
+def binary_xor(a: int, b: int) -> str:
     """
     Take in 2 integers, convert them to binary,
     return a binary number that is the

bit_manipulation/single_bit_manipulation_operations.py

@@ -3,7 +3,7 @@
 """Provide the functionality to manipulate a single bit."""
 
 
-def set_bit(number: int, position: int):
+def set_bit(number: int, position: int) -> int:
     """
     Set the bit at position to 1.
 
@@ -21,7 +21,7 @@ def set_bit(number: int, position: int):
     return number | (1 << position)
 
 
-def clear_bit(number: int, position: int):
+def clear_bit(number: int, position: int) -> int:
     """
     Set the bit at position to 0.
 
@@ -37,7 +37,7 @@ def clear_bit(number: int, position: int):
     return number & ~(1 << position)
 
 
-def flip_bit(number: int, position: int):
+def flip_bit(number: int, position: int) -> int:
     """
     Flip the bit at position.