dec_bin.cpp

#include<iostream>
using namespace std;
int main(){
int arr[100],i=0,j;
cout<<"Enter the num"<<" ";
int n;
cin>>n;
while(n>0)
{
    arr[i]= n%2;
    i++;
    n= n/2;
}
cout<<"Binary number is"<<" ";
for(j= i-1;j>=0;j--)
{
    cout<<arr[j];
}

return 0;

}