GATE 2020 CS – Question 56

Consider the following C functions.

int fun1(int n) {
  static int i = 0;
  if (n > 0) {
    ++i;
    fun1(n-1);
  }
  return(i);
}

int fun2(int n) {
  static int i = 0;
  if (n > 0) {
    i = i + fun1(n);
    fun2(n-1);
  }
  return(i);
}

The return value of fun2(5) is ______.