Assignment Description: Design a one-bit half adder/subtractor circuit. In this circuit, the input variables a and b are two input bits of the operation and the input variable c is used to select addition/subtraction operation. If c=1 then the circuit will operate as an adder (a+b) if it is equal to 0 it will operate as a subtractor (ab). The output bit x respresents the result of the operation and output bit y is carry of borrow with respect to operation selection