Display the n terms of odd natural number and their sum

C++ program

Source code:

#include <iostream>//  iostream provides basic

// input and output services for C++ programs

using namespace std;

int main()// Th execution of program start with the main function 

{

    // data type

    int i, n, sum = 0;

    cout << "\n\n Display n terms of odd natural number and their sum:\n";

    // cout is used to display

    // the same statement in the output.

    cout << "---------------------------------------------------------\n";

    cout << " Input number of terms: ";

    cin >> n;

    // Cin used to enter a value by the user.

    cout << " The odd numbers are: ";

    for (i = 1; i <= n; i++) 

    {

        cout << 2 * i - 1 << " ";

        sum += 2 * i - 1;

    }

    cout << "\n The Sum of odd Natural Numbers upto " << n << " terms"; 

" << sum << endl"; // endl is used to enter the next line characters

}