/* Check if the number is Disarium or not. Detaails here https://www.sololearn.com/Discuss/793235/?ref=app */ #include #include #include namespace sl { size_t process_number(std::size_t num) { std::size_t num_digits(0); std::size_t numbak(num); while(numbak > 0) { numbak /= 10; ++num_digits; } std::size_t Sum(0); while (num_digits > 0) { std::size_t digit = num % 10; num /= 10; Sum += std::pow(digit, num_digits--); } return Sum; }// end process_number void Display_info(size_t const& num, std::string const& msg = "") { std::cout << "entered number " << num << " is "<< msg << " a disarium number\n"; } void extract_and_checkDisarium(std::size_t const& num) { if(0 >= num || num <= 9) { Display_info(num); } else { std::size_t res = process_number(num); if(res == num) { sl::Display_info(num); } else { Display_info(num, "not"); } } } // extract_and_checkDisarium }// end namespace sl int main() { int num; std::cin >> num; if(num < 0) { std::cout << "please enter a positive number\n"; } else { sl::extract_and_checkDisarium( static_cast(num)); } std::cout << "===== exiting main ===="; return 0; }

disarium.cpp