#include<stdio.h>
#include<stdlib.h>
void  bin_add(int ,int );
void  bin_sub(int, int);
int bin(int);

int main(){
    int op1,op2;
    printf("enter the 1st operand:\t");
    scanf("%d",&op1);

    printf("enter the 2nd operand:\t");
    scanf("%d",&op2);


    bin_add(op1,op2);
    bin_sub(op1,op2);


}

int bin(int number){
    int q,rem,*bits;
    bits=(int)calloc(10,10*sizeof(int));
    int counter=0;
   do {
    rem=number%2;
    q=number/2;
    bits[counter]=rem;
    // printf("%d",bits[counter]);
    number=q;
    ++counter;
    }while(q!=0);

    // printf("\n\n");

    int *result;int size=0;
    result= (int )calloc(counter,counter*sizeof(counter));
    for(int x=counter-1;x>=0;x--){
        int second_counter=0;
        // printf("%d",bits[x]);
        result[second_counter]=bits[x];
        printf("%d",result[second_counter]);

    }
    printf("\n");
    return result;

}

void bin_add(int op1, int op2 ){
   int *bin_op1; int *bin_op2;
   printf("\nThe first operand:\n");
   bin_op1=bin(op1);
   printf("\nThe second operand :\n");
   bin_op2=bin(op2);
   printf("The sum is:\n");
   bin(op1+op2);



}


void bin_sub(int op1,int op2){
    int *bin_op1; int *bin_op2;
   printf("\nThe first operand:\n");
   bin_op1=bin(op1);
   printf("\nThe second operand :\n");
   bin_op2=bin(op2);
   printf("The subtaction is:\n");

   int sub=op1-op2;
    if(sub>=0){
        bin(sub);
    }
    else{
        printf("-");
        bin(abs(sub));

    }
}