The Program in C++ Program to check whether a number is a Duck Number or not is given below:

#include <iostream>
#include <string>

using namespace std;

bool isDuckNumber(int n) {
    string str = to_string(n);
    return str.find("0") != string::npos && str.find("0", str.find("0") + 1) != string::npos;
}

int main() {
    int n;
    cout << "Hello codeauri Family,Enter a number here to check if it is a duck number or not!:\n ";
    cin >> n;
    if (isDuckNumber(n)) {
        cout << n << " is a Duck Number." << endl;
    } else {
        cout << n << " is not a Duck Number." << endl;
    }
    return 0;
}

Output:

Hello codeauri Family,Enter a number here to check if it is a duck number or not!:
70709
70709 is a Duck Number.

Pro-Tips💡

This program implements a function isDuckNumber to check if a number is a Duck Number.

A Duck Number is a number that has at least two zeros in it.

The isDuckNumber function converts n to a string, then uses the find method to search for the first zero and the second zero in the string.

If the find method returns a position other than string::npos, which indicates that the character was found, and the second find method also returns a position other than string::npos, the function returns true, indicating that the number is a Duck Number.

If either of the find methods returns string::npos, the function returns false, indicating that the number is not a Duck Number.

The main function prompts the user to enter a number and calls the isDuckNumber function with the input.

If the function returns true, the number is a Duck Number and the program prints a message to that effect.

If the function returns false, the number is not a Duck Number and the program prints a message to that effect.