Write a C++ program to check if a given string starts with 'C#' or not

#include <iostream>

using namespace std;

 bool test(string str)
        {
            return (str.length() < 3 && str=="C#") || (str.substr(0,2)=="C#" && str[2] == ' ');
        }
        
int main() 
 {
  cout << test("C# Sharp") << endl;  
  cout << test("C#") << endl;  
  cout << test("C++") << endl;  
  return 0;    
}