C++ program to Find Sum of Natural Numbers using Recursion

C++ program to Find Sum of Natural Numbers using Recursion Function

Source Code: 

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#include<iostream> using namespace std; int add(int n); int main() { int n; cout << "Enter a positive integer: "; cin >> n; cout << "Sum = " << add(n); return 0; } int add(int n) { if(n != 0) return n + add(n - 1); return 0; }

Enter an positive integer: 10
Sum = 55