#include
#include
class dis
{private:
double x,y;
public:
dis(________){x=x1;y=y1;}
double getx(){return x;}
double gety(){return y;}
________double log(dis&,dis&);
};
double dis::log(dis&a,dis&b)
double px=a.x-b.x;
double py=a.y-b.y;
return sqrt(px*px+py*py);
}
void main()
dis pl(3.5,4.5),p2(5.5,6.5);
double d=dis::log(p1,p2);
cout<<"The distance is"< }
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