#include <stdio.h>
#include <math.h>
int decimal_to_binary(int);
int main(void)
{ int bits,gray; printf("What is the number of bits? "); scanf("%d",&bits); int max_num = pow(2,bits)-1; for(int j=0; j<=max_num; j++) { gray=j^(j>>1); printf("%d\n",decimal_to_binary(gray)); } return 0;
}
int decimal_to_binary(int num)
{ int binary=0,i=0; while(num!=0) { int reminder = num%2; binary += reminder*pow(10,i); num/=2; i++; } return binary;
}