HackerRank - LinkedList - compare two linked list

compareTwoLinkedList.cpp

/*
  Compare two linked lists A and B
  Return 1 if they are identical and 0 if they are not. 
  Node is defined as 
  struct Node
  {
     int data;
     struct Node *next;
  }
*/
int CompareLists(Node *headA, Node* headB)
{
  if(headA==NULL && headB==NULL)
      return 1; 
  if(headA==NULL || headB == NULL)
      return 0; 
  if(headA->data == headB->data)
      return CompareLists(headA->next, headB->next); 
  else
      return 0; 
}