#include <iostream>
#include <cmath>
using namespace std;

int convertDecimalToBinary(int);

int main()
{
    int deci, binaryNumber;

    cout << "Enter a decimal number: ";
    cin >> deci;
    binaryNumber = convertDecimalToBinary(deci);
    cout << deci << " in decimal = " << binaryNumber << " in binary" << endl ;
    return 0;
}

int convertDecimalToBinary(int deci)
{
    int binaryNumber = 0;
    int remainder, i = 1;

    while (deci!=0)
    {
        remainder = deci%2;
        deci /= 2;
        binaryNumber += remainder*i;
        i *= 10;
    }
    return binaryNumber;

}