CodeWars/6kyu/linked_lists_length_count/solution.cpp

/* Node Definition
struct Node {
  Node * next;
  int data;
}
*/

int Length(Node *head)
{
  int count = 0;
  while (head != NULL) {
    count++;
    head = head->next;
  }
  return count;
}

int Count(Node *head, int data)
{
  int count = 0;

  while (head != NULL) {
    if (head->data == data) count++;
    head = head->next;
  }

  return count;
}