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#include<iostream.h>

#include<conio.h>


class vector

{

                int *a;

                int n;

                public:


                void create()

                {

                                int i;

                                cout<<"\nEnter the dimensions of the vector space: ";

                                cin>>n;

                                a=new int[n];

                                cout<<"\nEnter the vector: ";


                                for(i=0;i
                                {

                                                cin>>a[i];

                                }

                }


                void modify()

                {

                                int m,i;

                                cout<<"\nEnter the position of the co-ordinate to be changed: ";

                                cin>>i;

                                cout<<"\nEnter the new value: ";

                                cin>>m;

                                a[i-1]=m;

                }


                void scalar()

                {

                                int x,i;

                                cout<<"\nEnter the scalar: ";

                                cin>>x;


                                for(i=0;i
                                {

                                                a[i]=x*a[i];

                                }

                }


                void display()

                {

                                int i;

                                cout<<"\nThe vector is: (";

                                for(i=0;i
                                {

                                                cout<
                                }

                                cout<
                }

};


void main()

{

                vector v;

                clrscr();

                int ch;

                do

                {

                cout<<"\n 1.Accpet vector \n 2.Display Vetor \n 3.Modify vector element \n 4.scalar operation \n 0.Exit";

                cout<<"\n Enter choice : ";

                cin>>ch;

                switch(ch)

                {


                                case 1 : v.create();

                                                break;

                                case 2 : v.display();

                                                break;


                                case 3 : v.modify();

                                                break;

                       case 4 : v.scalar();

                                                break;

                       case 0 : break;

                }

                }while(ch!=0);

                getch();


}
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