We can also use the bitwise XOR method for swapping two variables. The XOR of two variables, P and Q, will return the number which has all the bits as 1 whenever the bits of the P and Q variables differ.
Such as XOR of 4 (in binary 0100) and 6 (in binary 0110) is 1010.
XOR of 2 (in binary 0010) and 8 (in binary 1000) is 1010.
P = int( input("Please enter value for P: "))
Q = int( input("Please enter value for Q: "))
# To Swap the values of two variables using XOR
P = P ^ Q
Q = P ^ Q
P = P ^ Q
print ("The Value of P after swapping: ", P)
print ("The Value of Q after swapping: ", Q)
Please enter value for P: 12
Please enter value for Q: 10
The Value of P after swapping: 10
The Value of Q after swapping: 12
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.