题目
代码
#include <iostream>
#include <cmath>
using namespace std;
template <class T>
class d
{
private:
T x1;
T y1;
T x2;
T y2;
public:
d(int i_x1,int i_y1, int i_x2, int i_y2)
{
x1=i_x1;
x2=i_x2;
y1=i_y1;
y2=i_y2;
}
d(double i_x1,double i_y1, double i_x2, double i_y2)
{
x1=i_x1;
x2=i_x2;
y1=i_y1;
y2=i_y2;
}
T distance( T x1, T y1, T x2, T y2)
{
return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
}
};
int main( )
{
int i_x1, i_y1, i_x2, i_y2;
double d_x1, d_y1, d_x2, d_y2;
cin>>i_x1>>i_y1>>i_x2>>i_y2;
cin>>d_x1>>d_y1>>d_x2>>d_y2;
d<int> d1(i_x1, i_y1, i_x2, i_y2);
d<double> d2( d_x1, d_y1, d_x2, d_y2);
cout<<d1.distance( i_x1, i_y1, i_x2, i_y2 )<<endl;
cout<<d2.distance(d_x1, d_y1, d_x2, d_y2 )<<endl;
return 0；
}
