第十二题

#include <iostream>
using namespace std;
template<class numtype>
class Compare
 {public:
   Compare(numtype a,numtype b);
   numtype max();
   numtype min();
  private:
   numtype x,y;
 };
template <class numtype>
Compare<numtype>::Compare(numtype a,numtype b)
  {x=a;y=b;}
template <class numtype>
numtype Compare<numtype>::max()
 {return (x>y)?x:y;}
template <class numtype>
numtype Compare<numtype>::min()
  {return (x<y)?x:y;}


int main()
{Compare<int> cmp1(3,7);
 cout<<cmp1.max()<<" is the Maximum of two integer numbers."<<endl;
 cout<<cmp1.min()<<" is the Minimum of two integer numbers."<<endl<<endl;
 Compare<float> cmp2(45.78,93.6);
 cout<<cmp2.max()<<" is the Maximum of two float numbers."<<endl;
cout<<cmp2.min()<<" is the Minimum of two float numbers."<<endl<<endl;
 Compare<char> cmp3('a','A');
 cout<<cmp3.max()<<" is the Maximum of two characters."<<endl;
 cout<<cmp3.min()<<" is the Minimum of two characters."<<endl;
 return 0;
}