飞机绕地球的燃料问题,某公司面试题.

#include <iostream>
using namespace std;

const double S = 10000;
const double MAX_Oil  = 5000;
const double STEP = 1250;

class Airplane
{
public:
    Airplane():m_ulCurOil(5000),m_ulAlreadyAir(0){}
 void SetCurOil(double OilParam){m_ulCurOil = OilParam;}
 double GetCurOil()const{return m_ulCurOil;}
 void SetCurAlreadyAir(double AlreadyAirParam){m_ulAlreadyAir = AlreadyAirParam;}
 double GetCurAlreadyAir()const{return m_ulAlreadyAir;}
private:
    double m_ulCurOil;
 double m_ulAlreadyAir;
};

Airplane g_Airplane;

void Fly()
{
 Airplane l_Airplane_help_one;
 Airplane l_Airplane_help_two;
 Airplane l_Airplane_help_three;
 bool OneIsFinishHelp = false;
 bool TwoIsFinishHelp = false;
 bool ThreeIsFinishHelp = false;
 for (double i=STEP;i<=S;i+=STEP)

 {
  g_Airplane.SetCurOil(g_Airplane.GetCurOil() - STEP);
  
  g_Airplane.SetCurAlreadyAir(i);
  
  if (!OneIsFinishHelp)
  {
   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() - STEP);
  }

  if (!TwoIsFinishHelp)
  {
   l_Airplane_help_two.SetCurOil(l_Airplane_help_two.GetCurOil() - STEP);
  }

  if (!ThreeIsFinishHelp)
  {
   l_Airplane_help_three.SetCurOil(l_Airplane_help_three.GetCurOil() - STEP);
  }

  if (i == (S*0.125))
  {
   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() - MAX_Oil*0.25);
   g_Airplane.SetCurOil(g_Airplane.GetCurOil() + MAX_Oil*0.25);

   l_Airplane_help_two.SetCurOil(l_Airplane_help_two.GetCurOil() - MAX_Oil*0.25);
   l_Airplane_help_three.SetCurOil(l_Airplane_help_three.GetCurOil() - MAX_Oil*0.25);

   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() + MAX_Oil*0.25);
   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() + MAX_Oil*0.25);
  }
  if (i == (S*0.25))
  {
   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() - MAX_Oil*0.25);
   g_Airplane.SetCurOil(g_Airplane.GetCurOil() + MAX_Oil*0.25);

   l_Airplane_help_two.SetCurOil(l_Airplane_help_two.GetCurOil() - MAX_Oil*0.25);
   l_Airplane_help_three.SetCurOil(l_Airplane_help_three.GetCurOil() - MAX_Oil*0.25);

   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() + MAX_Oil*0.25);
   l_Airplane_help_one.SetCurOil(l_Airplane_help_one.GetCurOil() + MAX_Oil*0.25);
   TwoIsFinishHelp = true;
   ThreeIsFinishHelp = true;
  }
  if (i == (S*0.5))
  {
   g_Airplane.SetCurOil(g_Airplane.GetCurOil() + l_Airplane_help_one.GetCurOil());
   l_Airplane_help_one.SetCurOil(0);
   OneIsFinishHelp = true;
  }
 }
}

int main()
{
 Fly();
 cout << "飞机行程:" << g_Airplane.GetCurAlreadyAir() << endl;
 cout << "飞机油量:" << g_Airplane.GetCurOil() << endl;
 return 0;
}

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