Programming Example
Python program to swap two variables -By using XOR method
Python program to swap two variables -By using XOR method
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 read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.