Binary to Decimal in C and C++

Bismillahir Rahmanir Rahim

Solution in C:

#include<stdio.h>
#include<math.h>
void main()
{
unsigned long int binary;
 int b,decimal=0,i=0;
 printf("Enter your binary number: ");
 scanf("%ld",&binary);
 while(binary!=0)
 {
  b=binary%10;
  binary=binary/10;
  decimal=decimal+b*pow(2,i);
  i++;
 }
printf("Decimal is = %d",decimal);
}

Solution in C++:

#include<iostream.h>
#include<math.h>
void main()
{
 unsigned long int binary;
 int b,decimal=0,i=0;
 cout<<"Enter your binary number: ";
 cin>>binary;
 while(binary!=0)
 {
  b=binary%10;
  binary=binary/10;
  decimal=decimal+b*pow(2,i);
  i++;
 }
cout<<"Decimal is = "<<decimal;
}

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