Write a C program to perform the following compliment Operations. a)1’s Complement b)2’s Complement

A)1’s Complement

#include <stdio.h>

#define SIZE 8

int main()

{

    char binary[SIZE + 1], onesComp[SIZE + 1];

    int i, error=0;

    printf("Enter %d bit binary value: ", SIZE);

   

    /* Input binary string from user */

    gets(binary);

    /* Store all inverted bits of binary value to onesComp */

    for(i=0; i<SIZE; i++)

    {

        if(binary[i] == '1')

        {

            onesComp[i] = '0';

        }

        else if(binary[i] == '0')

        {

            onesComp[i] = '1';

        }

        else

        {

            printf("Invalid Input");

            error = 1;

            /* Exits from loop */

            break;

        }

    }

    /* Marks the end of onesComp string */

    onesComp[SIZE] = '\0';

    /* Check if there are binary string contains no error */

    if(error == 0)

    {

        printf("Original binary = %s\n", binary);

        printf("Ones complement = %s", onesComp);

    }

    return 0;

}

B)2’s Complement  

#include <stdio.h>  

int main()  

{  

   int n;  // variable declaration  

   printf("Enter the number of bits do you want to enter :");  

   scanf("%d",&n);  

   char binary[n+1];  // binary array declaration;  

   char onescomplement[n+1]; // onescomplement array declaration  

   char twoscomplement[n+1]; // twoscomplement array declaration  

   int carry=1; // variable initialization  

   printf("\nEnter the binary number : ");  

   scanf("%s", binary);  

   printf("%s", binary);  

   printf("\nThe ones complement of the binary number is :");  

     

   // Finding onescomplement in C  

   for(int i=0;i<n;i++)  

   {  

       if(binary[i]=='0')  

       onescomplement[i]='1';  

       else if(binary[i]=='1')  

       onescomplement[i]='0';  

   }  

   onescomplement[n]='\0';  

   printf("%s",onescomplement);  

   

 

printf("\nThe twos complement of a binary number is : ");  

 

// Finding twoscomplement in C  

for(int i=n-1; i>=0; i--)  

    {  

        if(onescomplement[i] == '1' && carry == 1)  

        {  

            twoscomplement[i] = '0';  

        }  

        else if(onescomplement[i] == '0' && carry == 1)  

        {  

            twoscomplement[i] = '1';  

            carry = 0;  

        }  

        else  

        {  

            twoscomplement[i] = onescomplement[i];  

        }  

    }  

twoscomplement[n]='\0';  

printf("%s",twoscomplement);  

return 0;  

}