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  1. Prepare
  2. Data Structures
  3. Linked Lists
  4. Insert a node at a specific position in a linked list
  5. Discussions

Insert a node at a specific position in a linked list

  • alban_tyrex
     + 0 comments

    Here is my C++ solution, you can watch the explanation here : https://youtu.be/jCPAp_UIzAs

    SinglyLinkedListNode* insertNodeAtPosition(SinglyLinkedListNode* llist, int data, int position) {
    SinglyLinkedListNode* newNode = new SinglyLinkedListNode(data);
    if(position == 0) {
        newNode->next = llist;
        return newNode;
    }
    SinglyLinkedListNode* curr = llist;
    while(position - 1) {
        position--;
        curr = curr -> next;
    }
    newNode -> next = curr->next;
    curr->next = newNode;
    return llist;
}