In C What is wrong with the following program include using

In C++, What is wrong with the following program?

#include <iostream>

using namespace std;

int f(int n){

        int result = 5+5*f(n-1);

        return (result);

}

void main(){

        int r, n;

        cout << “Enter value for n:” << endl;

        cin >> n;

        r = f(n);

        cout << “Result is:” << r << endl;

}

Solution

now i would like to explain basic concept

there are 2 types of cases when using a recursive function: base cases and recursive cases. This is very important to remember when using recursion, and when you are trying to solve a problem you should ask yourself: “What is my base case and what is my recursive case

base case for exit and recusive for solve problem.

Here , i modify function as.

int f(int n) {

and complete program:

#include <iostream>
#include <conio.h>
using namespace std;
int f(int n){
   if(n==0)
       return 5;
   else{
   int result= 5 + 5*f(n-1);
   return result;
   }
}

void main()
{
   int r,n;

   cout << \"Enter value for n\ \";
cin >>n;

   r=f(n);
   cout <<\"result is = \" << r << endl;

   getch();
}