Write a program to add natural numbers up to 20 by using for loop in c++ language.

 Write a program to add natural numbers up to nth term by using for loop in c++ language. 

#include <iostream>

using namespace std;

int main() {

    int sum =0  ,n ;

    cout<<"Enter the nth term  n = ";

    cin>>n;

     for(int i =1;i<=n; i++)
    {  sum =sum +i ;}

    cout<<"sum of  "<<n<<"th term is = "<<sum

   return 0;
}

• OUTPUT

Enter the nth term  n = 20
the sum of  20th term is = 210

Write a program that prompts the user to input a positive integer. It should then print the multiplication table of that number.