Write a class template to represent a generic vector. Include member functions to perform the following tasks: (a) To create two vectors. (b) To modify the value of a given element. (c) To multiply the two vectors (d) To display the vectors in the form (10, 20, 30,......):

 it is to be noted that this codes shows unexpected solutions for different sized vectors because i wrote this just for solving the question for two equal sized vectors

......oh yeah,,,,,,,

#include <iostream>

using namespace std;

template <class T1, class T2, class T3>

class vect1

{

public:

    T1 arr1[100];

    T2 arr2[100];

    T3 arr3[100];

    float sum;

    int size1, size2, i, j, k;

    void array1()

    {

        cout << "vector 1 size\n";

        cin >> size1;

        cout << "vector 2 size\n";

        cin >> size2;

        if (size1 != size2)

        {

            cout << "vector size should be of same size for multipication\n";

        }

        else if (size1 == size2)

        {

            cout << "enter vector 1\n";

            for (i = 0; i < size1; i++)

            {

                cin >> arr1[i];

            }

            cout << "enter vector 2\n";

            for (j = 0; j < size2; j++)

            {

                cin >> arr2[j];

            }

        }

    }

    void modify()

    {

        int index;

        int choice, newentry;

        cout << "enter  1 to modify vector 1 and\n 2 to modify vector 2 and\n 3 to do nothing\n";

        cin >> choice;

        if (choice == 1)

        {

            cout << "enter number to modify in vector 1\n";

            cin >> index;

            cout << "enter new number for vector 1\n";

            for (i = 0; i < size1; i++)

            {

                if (arr1[i] == index)

                {

                    cin >> newentry;

                    arr2[i] = newentry;

                }

            }

        }

        else if (choice == 2)

        {

            cout << "enter number to modify in vector 2\n";

            cin >> index;

            cout << "enter new number in vector 2\n";

            for (j = 0; j < size2; j++)

            {

                if (arr2[j] == index)

                {

                    cin >> newentry;

                    arr2[j] = newentry;

                }

            }

        }

    }

    void mul()

    {

        for (k = 0; k < size1; k++)

        {

            arr3[k] = arr1[k] * arr2[k];

            sum += arr3[k];

        }

        cout << " SCALAR MULTIPLICATION IS " << sum << endl;

    }

    void display()

    {

        cout << "vector 1 is" << endl;

        cout << "( ";

        for (i = 0; i < size1; i++)

        {

            cout << arr1[i] << " , ";

        }

        cout << ")" << endl;

        ;

        cout << "vector 2 is" << endl;

        cout << "( ";

        for (j = 0; j < size2; j++)

        {

            cout << arr2[j] << " , ";

        }

        cout << ")" << endl;

    }

};

int main()

{

    vect1<int, int, int> obj;

    obj.array1();

    cout << "\nbefore any modifications \n" << endl;

    obj.display();

    obj.modify();

    cout << "\n\nafter each modifications\n\n " << endl;

    obj.display();

    obj.mul();

    return 0;

}