swap-adjacent-bits.cpp

#include <iostream>
using namespace std;

unsigned int swap_odd_even(int num){
	int mask=0xAAAAAAAA;
	
	
	unsigned int oddbits = (num&mask);
	
	unsigned int evenbits = num&(mask>>1);  
	

	return (oddbits>>1) | (evenbits<<1);
}

int main()
{ 
	int T;  
	cout<<"Enter total number of elements (test cases): ";	
	cin>>T;
	

	unsigned int N;   

	for(int i=0;i<T;i++)
	{
		cout<<"Enter number: ";	
		cin>>N;
		cout<<"Original number is : "<<N<<endl;
		cout<<"Converted number is :"<<swap_odd_even(N)<<endl;
	}
	
	return 0;
}