Dec to BIN

// decimal to binary

#include <iostream>
#include <string>

using namespace std;

int main() {

    int num;
    cout << "Decimal: ";
    cin >> num;
    string binNum;
    int x = num;

    while (x > 0) {
        binNum.insert(0, to_string(x % 2));
        x /= 2;
    }

    cout << "Binary representation of " << num << " is " << binNum << endl;

    return 0;
}