Write a C Program to convert decimal to binary and hex (using switch call function the function)

6b

Aim:- Write a C Program to convert decimal to binary and hex (using switch call function the function)

Program:-

#include<stdio.h>

#include<math.h>

int D2B(int);

int D2H(int);

main()

{

  int ch,num;

  printf("\n1.Decimal 2 Binary.");

  printf("\n2.Decimal 2 Hexa.");

  printf("\nEnter your Choice:");

  scanf("%d",&ch);

  switch(ch)

   {

     case 1:

          printf("\nEnter any Decimal number:");

          scanf("%d",&num);

          printf("Binary number of %d is %d\n",num,D2B(num));

          break;

     case 2:

          printf("\nEnter any Decimal number:");

          scanf("%d",&num);

          printf("Hexa Decimal number of %d is",num);

          D2H(num);

          break;

     default:

         printf("\nEnter proper Choice:");

         break;

   }

}

int D2B(int n)

{

    int remainder;

    long binary = 0, i = 1;

    while(n != 0) {

        remainder = n%2;

        n = n/2;

        binary= binary + (remainder*i);

        i = i*10;

    }

   return binary;

}

int D2H(int n)

{

int rem[50],i=0,length=0;

while(n>0)

   {

      rem[i]=n%16;

      n=n/16;

      i++;

      length++;

   }

 for(i=length-1;i>=0;i--)

  {

    switch(rem[i])

    {

      case 10:

          printf("A");

          break;

      case 11:

          printf("B");

          break;

      case 12:

          printf("C");

          break;

      case 13:

          printf("D");

          break;

      case 14:

          printf("E");

          break;

      case 15:

          printf("F");

          break;

      default :

         printf("%d",rem[i]);

    }

  }

}