Geeksforgeeks Solution For " Swap all odd and even bits "

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Problem :- Swap all odd and even bits

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Solution :- 

#include <stdio.h>
unsigned int swapBits(int x)
{
int even_bits = x & 0xAAAAAAAA; 
int odd_bits = x & 0x55555555; 
even_bits >>= 1; 
odd_bits <<= 1; 
return (even_bits | odd_bits);
}

int main()
{
    int t;
    scanf("%d",&t);
    while(t--)
    {
int x; 
scanf("%d",&x);
printf("%d\n", swapBits(x));
    }
return 0;
}

Output:-