Program to print sum of n numbers using recursive function

#include<iostream>

using namespace std;

int sum(int n)

{

if (n==1)

return 1;

else

return n+sum(n-1);

}

int main()

{

int n,z;

cout<<"enter the limit of value of n:";

cin>>n;

z=sum(n);

cout<<"sum : "<<z;

}