#include <iostream>#include <cstring>using namespace std;class String{	private:   	    char *str;	public:	    String(char *s)	    {	        int lenght=strlen(s);	        str = new char[lenght+1];	        strcpy(str, s);		    }	    ~String()	    {		cout << "Deleting str.\n";		delete[] str;	    	    }	    void display()	    {		cout << str <<endl;	    }};int main(void){	String s1="I like FriendlyARM.";	cout << "s1=";	s1.display();	return 0;	double num, ans;	cout << "Enter num:";}