Create the Function for the program that will prompt the user to enter a valid # 1-20. Protect against #s too large or small and return only valid #s within range #include<iostream> #include<windows.h> int pd(std::string); // prototype using namespace std; int main() { int s1{ 0 }; int s2{ 1 }; int s3{ 2 }; s1 = pd("\n\n\tEnter s1 "); // call cout << "\n\ns1 = " << s1;// call s2 = pd("\n\n\tEnter s2 "); cout << "\n\ns2 = " << s2; s3 = pd("\n\n\tEnter s3 "); cout << "\n\ns3 = " << s3; cout << endl; return 0; } // Create a Function and type it here. Use a loop for valid range (no goto) c++ .