What does this program do? recursive function - C++ Function

C++ examples for Function:Recursive Function

  1. HOME
  2. C++
  3. Function
  4. Recursive Function

Description

What does this program do? recursive function

Demo Code

#include <iostream>
using namespace std;

int mystery(int, int); // function prototype

int main() {/*from  w ww .j  a v a  2s.  c om*/
   cout << "Enter two integers: ";
   int x{0};
   int y{0};
   cin >> x >> y;
   cout << "The result is " << mystery(x, y) << endl;
}

// Parameter b must be a positive integer to prevent infinite recursion
int mystery(int a, int b) {
   if (1 == b) { // base case
      return a;
   }
   else { // recursion step
      return a + mystery(a, b - 1);
   }
}

Result


Related Tutorials