Answer Posted / hari

#include<stdio.h>
int main()
{
int n,n2;
printf("enter the no. < 15 "); // here i am considering the case of 4 bits. (1111) binary = (15) decimal
scanf("%d",&n);
n2=n^10;

/*
10 = 1010 in binary form, to invert its even bits , we will
use bit wise XOR (^) operator
1010 has 1 at its even places, so it will invert the even bits of n.
if there is any further problem mail me at
buntyhariom@gmail.com
www.campusmaniac.com
*/
printf("\n%d",n2);

return 0;
}

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