#include <stdio.h>
unsigned int reverse(unsigned int A) {
    unsigned int left,right,count,l,r;
    count = (sizeof(A)*8);
    left=count-2;right=0;
   while(left>right)
   {
   	printf("A= %d left = %d right = %d\n",A>>0,left,right);
        r=(A>>right)&1;
        l = (A>>(left))&1;
    printf(" l = %d r = %d\n",l,r);
       if(l^r)
       {
           A = A^(1<<(left));
           printf("lA=%d\n",A);
           A=A^(1<<(right));
           printf("rA=%d\n",A);
       }
       left--;right++;
   }
    return A;
}
 
int main(void) {
	// your code goes here
	printf("rev= %d\n",reverse(1));
	return 0;
}
 

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