Question

Write A Program That Asks The User To Enter An Unsigned Number And Read It. Then Swap The Bits At Odd Positions With Those At Even Positions And Display The Resulting Number. For Example, If The User Enters The Number 9, Which Has Binary Representation Of 1001, Then Bit 0 Is Swapped With Bit 1, And Bit 2 Is Swapped With Bit 3, Resulting In The Binary Number

Answer 1

A program to swap bits at odd and even positions can be written in Python, where it takes user input and uses bitwise manipulation to swap the bits in each pair, then prints out the resulting number.

Step-by-step explanation:

A program that swaps bits at odd positions with those at even positions involves binary number manipulation. In the case of the number 9 (binary 1001), after swapping the 0th bit with the 1st, and the 2nd with the 3rd, the result should be 0110 in binary, which is 6 in decimal.

Here is a simple program in Python demonstrating this:

number = int(input("Enter an unsigned number: "))
result = 0

for i in range(0, 32, 2): # Assuming a 32-bit unsigned integer
even_bit = (number >> i) & 1
odd_bit = (number >> (i + 1)) & 1
result |= (even_bit << (i + 1)) | (odd_bit << i)

print("The resultant number after swapping bits is:", result)

This program first prompts the user to enter an unsigned number. It then initializes a result variable to 0. Using a loop, it iterates through each pair of bits, extracts the even and odd bits using bitwise operators, and places them in their new positions. Finally, it prints out the resulting number after bit swapping.