decimal to binary using c++ codes?

Answer 1

#include
using namespace std;

int main() {
int n,i;
int a[100];
int k;
while(1) {
system("cls");
cout << endl << endl;
cout << "Enter a decimal number : ";
cin >> n;

cout << endl << endl;
cout << "The number " << n;
k=0;
do {
a[k]=n%2;
n=n/2;
k=k+1;
}while (n>=1);
cout <<" in decimal is equal to the number ";
for(i=k-1; i>=0; i--) {
cout << a[i];
}
cout << " in base 2" << endl << endl;
system("pause");
}
}