C++ - Decimal to binary converting

Question

I wrote a \'simple\' (it took me 30 minutes) program that converts decimal number to binary. I am SURE that there\'s a lot simpler way so can you show me? Here\'s the code:<

Answer 1

This is a more simple program than ever

//Program to convert Decimal into Binary
#include
using namespace std;
int main()
{
    long int dec;
    int rem,i,j,bin[100],count=-1;
    again:
    cout<<"ENTER THE DECIMAL NUMBER:- ";
    cin>>dec;//input of Decimal
    if(dec<0)
    {
        cout<<"PLEASE ENTER A POSITIVE DECIMAL";
        goto again;
    }
    else
        {
        cout<<"\nIT's BINARY FORM IS:- ";
        for(i=0;dec!=0;i++)//making array of binary, but reversed
        {
            rem=dec%2;
            bin[i]=rem;
            dec=dec/2;
            count++;
        }
        for(j=count;j>=0;j--)//reversed binary is printed in correct order
        {
            cout<