Swap all odd and even bits.cpp

class Solution
{
    public:
    //Function to swap odd and even bits.
    unsigned int swapBits(unsigned int n)
    {
    	// Your code here
    	
    	unsigned even_bits = n & 0xAAAAAAAA;
    	unsigned odd_bits = n & 0x55555555;
    	
    	even_bits=even_bits>>1;
    	odd_bits=odd_bits<<1;
    	
    	return even_bits | odd_bits ;
    	
    }
};