text: #if !defined(__NORMAL_DISASTER_CLASS__)
  #define __NORMAL_DISASTER_CLASS__
  
  #include "P_8_a_Disaster_class.h"
  
  class Normal_disaster_class : public Disaster_class {
      private:
          static float worked_hour_price;
      public:
          Normal_disaster_class(const std::string& = "No description...");
  
          void compute_budget(float = 0.5f, float = 0) override;
          void show(std::ostream& os = std::cout) const override;
          Normal_disaster_class* clone() const override;
          float get_budget(void) const override;
  };
  
  #endif