56: Write a program in C++ to display n terms of natural number and their sum. Go to the editor


// Write a program in C++ to display n terms of natural number and their sum. Go to the editor
// Sample Output:
// Input a number of terms: 7
// The natural numbers upto 7th terms are:
// 1 2 3 4 5 6 7
// The sum of the natural numbers is: 28
// **************************************************************************************************

#include <iostream>
using namespace std;
int main()
{
    cout << "\n****************************************************************************\n\n";
    int numf, a = 0;
    cout << "Enter the number of terms: ";
    cin >> numf;
    cout << "The natural numbers upto " << numf << " terms are:" << endl;
    for (int i = 1; i <= numf; i++)
    {
        cout << i << " ";
    }
    for (int i = 1; i <= numf; i++)
    {
        a = a + i;
    }
    cout << "\nThe sum of natural numbers upto " << numf << " is: " << a << endl;
    cout << "\n****************************************************************************\n\n";

    int j = 1, k = 1, b = 0;
    cout << "The natural numbers upto " << numf << " term is:" << endl;
    while (j <= numf)
    {
        cout << j << ' ';
        j++;
    }
    while (k <= numf)
    {
        b = b + k;
        k++;
    }
    cout << "\nThe sum of natural numbers upto " << numf << " is: " << b << endl;
    cout << "\n****************************************************************************\n\n";

    int l = 1, m = 1, c = 0;
    cout << "The natural numbers upto " << numf << " term are:" << endl;
    do
    {
        cout << l << ' ';
        l++;
    } while (l <= numf);
    do
    {
        c = c + m;
        m++;
    } while (m <= numf);
    cout << "\nSum of natural numbers upto " << numf << " is: " << c << endl;
    cout << "\n****************************************************************************\n\n";

    return 0;
}



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