C++ Program to Convert Decimal to Binary Value

/*C++ Program to Convert Decimal to Binary Value*/

#include<iostream>

using namespace std;

int main()

{

    int d,rem,b=0,i=1;

    cout<<"Enter decimal number : ";

    cin>>d;

    while(d!=0)

    {

        rem=d%2;

        b=b+rem*i;

        d=d/2;

        i*=10;

    }

    cout<<endl<<"Binary : "<<b;

    return 0;

}

OUTPUT:

Enter decimal number : 8

Binary : 1000

EXPLANATION:

Assume that decimal number is 8. 

When while loop is executing 

First run

rem = 0

b = 0

d = 4

i = 10

Second run

rem = 0

b = 0

d = 2

i = 100

Third run

rem = 0

b = 0

d = 1

i = 1000

Fourth run

rem = 1

b = 1000

d = 0

i = 10000

After the fourth run while loop is terminated because the condition (d!=0) become false, value of d become 0.  

After the while loop binary value is printed.

PROGRAMS:

C++ program to read matrix of size m x n using function

C++ Program to Check Whether a Number is Prime or Not

C++ Program to Swap Two Numbers Using Bitwise Operator

C++ Program to Find Factorial of Number

C++ Program to Find Sum of Square of n Natural Numbers