#include<iostream> #include<cstdlib> #include<ctime> using namespace std; class box { public:     box(double alength=1.0,double abreadth=1.0,double aheight=1.0);     ~box()     {         cout<<endl<<"constructor destroyed."<<endl;     }     double getvolume()const     {         return height*length*breadth;     }     double getlength()const     {         return length;     }     double getbreadth()const     {         return breadth;     }     double getheight()const     {         return height;     }     bool operator<(const box& abox)const     {         return this->getvolume()<abox.getvolume();     } private:     double length;     double height;     double breadth; }; box::box(double alength,double abreadth,double aheight) {     length=alength;     breadth=abreadth;     height=aheight; } inline int random(int num) {     return 1+(num*(rand()))/(RAND_MAX+1); } int main() {     box boxes[20];     box* pbox=new box;     pbox=boxes;     const int dimlimit=100;     srand((unsigned)time(0));     for(int i=0;i<20;i++)     {       boxes[i]=box(random(dimlimit),random(dimlimit),random(dimlimit));       cout<<endl<<"The "<<i+1<<"th box is:"<<boxes[i].getlength()<<" by "<<boxes[i].getbreadth()           <<" by "<<boxes[i].getheight();     }     box minibox;     minibox=*pbox;     for(int j=1;j<20;j++)     {         if(boxes[j]<minibox)          minibox=boxes[j];     }     cout<<endl<<"In the 20 boxes,the minimum box is: "<<minibox.getlength()<<" by "<<minibox.getbreadth()         <<" by "<<minibox.getheight()<<endl;     return 0; }

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