Q1: Write a C++ code to swap two integer numbers and find the sum of them (use temp variable).

#include <iostream>
using namespace std;

int main()
{
    int a, b, temp;
    cout<<"enter the value of a ";
    cin >> a;
    cout<<"enter the value of b ";
    cin >> b;

   cout<< " before a = "<<a<<", b = "<<b<<endl;
   temp = a;
   a = b;
   b=temp;
   int sum = a + b;
   cout<<" after a = "<<a<<", b = "<<b<<endl;
   cout<<" the sum is : "<<sum<<endl;
return 0;
}

Q2: Write a C++ code to swap two integer numbers (use Bitwise exclusive OR operator).

#include <iostream>
using namespace std;

int main()
{
    int a, b, temp;
    cout<<"enter the value of a ";
    cin >> a;
    cout<<"enter the value of b ";
    cin >> b;

   cout<< " before a = "<<a<<", b = "<<b<<endl;
   a = a ^ b;
   b = a ^ b;
   a = a ^ b;
   cout<<" after a = "<<a<<", b = "<<b<<endl;
return 0;
}

Q3: Write a C++ program to read five numbers, find their sum, and print the numbers in reverse order.

#include <iostream>
using namespace std;

int main()
{
    int sum=0;
    int number [5];

    cout<<"enter the five number : "<<endl;

    for (int i = 0; i < 5; i++)
    {
        cout<<" number "<<i+1<<" : ";
        cin>>number[i];
        sum += number[i];
    }
    cout<<" the sum "<<sum<<endl;
    cout<<" number in reverse : "<<endl;
    for (int i = 4; i>=0; i--)
    {
        cout<< number[i]<<", ";
    }

    return 0;
}

Q4: Write a C++ program to find the sum and average of six numbers.

#include <iostream>
using namespace std;

int main()
{
    float sum=0;
    float average;
    float number [6];
    cout<< " enter the six number : "<<endl;
    for (int i = 0; i < 6; i++)
    {
        cout<<" number "<<i+1<<" : ";
        cin>>number[i];
        sum += number[i];
        average = sum/6;
    }
    cout<<" the sum "<<sum<<endl;
    cout<<" the average "<<average<<endl;
    return 0;
}