Program to Convert Binary to Decimal number:Number System

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Program to Convert Binary to Decimal number:Number System 

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Note : 

As this program is for beginners (not for Experts) ,And  no Validations are Provided in Program . So Please Provide Correct Inputs ( 0 and 1 ) 

Logic of This Program :

1. Accept Number from User ( Follow Upper Note)
2. Divide Number by 10 and Store Remainder in variable rem
3. Divide Original Number by 10 .
4. sum = sum + rem * pow(2,power);  // First Iteration power=0 then Power is Incremented in each Iteration
5. Calculate sum
6. Display Sum as Decimal Representation of Given Binary
   

Program :

#include<stdio.h>
#include<conio.h>
#include<math.h>
void bin_dec(long int num)   // Function Definition
{
long int rem,sum=0,power=0;
while(num>0)
 {
 rem = num%10;
 num = num/10;
 sum = sum + rem * pow(2,power);
 power++;
 }
printf("Decimal number : %d ",sum);
}
//-------------------------------------
void main()
{
long int num;
clrscr();
printf("Enter the Binary number (0 and 1): ");
scanf("%ld",&num);
bin_dec(num);
getch();
}

Output :

Enter the Binary number : 111
Decimal number : 7

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Tags / Keywords : | Binary2Decimal, Number System

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