Question

c++ program to convert decimal to binary using recursion

Answer 1

#include <iostream>
#include <string>

using namespace std;


string dec_to_bin(int decNumber)
{
/* Convert positive numbers only */
if (decNumber <= 0)
return "0";

static string result;
char digit;

if (decNumber != 0)
{
digit = (decNumber % 2) + '0';
result.insert(0, &digit, 1);
dec_to_bin(decNumber / 2);
}
return result;
}


int main()
{
int decNumber;


cout << "Enter a decimal number: ";
cin >> decNumber;
cout << "The binary value is: " << dec_to_bin(decNumber);


return 0;
}