Decimal To Binary Conversion In C Code::Blocks

What is a decimal number?

A decimal number system is consisting of digits from 0-9 the base of a decimal number is 10. Hence all those numbers made of digits from 0-9 are called decimal numbers.

What is a binary number?

A binary number system is consisting of digits 0 & 1 only therefore the base of this number system is 2. So all the number consisting of these two digits only are called binary numbers.

Program Convert Decimal To Binary In C:

#include<stdio.h>

#include<conio.h>

int main()

{

   int a[10],num,i,j;

   printf("enter a decimal number");

   scanf("%d",&num);

   for(i=0;num>0;i++)

   {

       a[i]=num%2;

       num=num/2;

   }

   for(j=i-1;j>=0;j--)

   {

       printf("%d",a[j]);

   }

    return 0;

}

How convert a decimal number into binary number.

in order to convert a decimal number into a binary number we divide the decimal number by the base of binary i.e., divide by 2 and store the remainder at every step until we get a number less than 2.

the follow can be understood with the follow example.