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insert data at the head of a singly linked listed node

void insertAtHead(node *&head, int d) {
  node *temp = new node(d);
  temp->next = head;
  head = temp;
}

#c++ #dsa #linkedlist #deletenode

delete node in singly linked list

void deleteNode(node *&head, int position) {
  if (position == 1) {
    node *temp = head;
    head = head->next;
    temp->next = NULL;
    delete temp;
  }

  else {
    node *curr = head;
    node *prev = NULL;
    int cnt = 1;
    while (cnt < position) {
      prev = curr;
      curr = curr->next;
      cnt++;
    }
    prev->next = curr->next;
    curr->next = NULL;
    delete curr;
  }
}

insert data at the head of a singly linked listed node

delete node in singly linked list

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