Write the sequence of nodes visited using inorder traversal. Write the sequence of nodes visited using preorder traversal. What are the ancestor nodes of the node with key ?

Given the following definitions that we have used in class to represent a doubly-linked, circular List with a dummy-header node that contains data of type "struct Student". typedef struct { char *name; char *major; } Student;typedef struct node { Student *data;    struct node *next; struct node *prev; } Node;typedef struct { Node *header; int size; } LinkedList;LinkedList *roster; Here is a picture of what the Linked List might look like, although you should answer the following question for a general list (ie, that does not necessarily contain 3 data items).     What TYPE of data is the following: *roster Group of answer choices int int * Node Node * Student Student * char char * This is legal code, but it does not match any of the types listed above. This is illegal code, and would produce a syntax error No hand written solution and no image

Computer science question

Please answer the following section.

DisjointSet Class    Implementation of this class is done in a1_partc.py A DisjointSet class represents a disjoint set which is a set of sets where every element can only belong to exactly one set. When a DisjointSet class is instantiated it is passed nothing and contains no sets. It make an empty Python dictionary which will be used to store the elements of the DisjointSet. The DisjointSet has the following member functions: def make_set(self,element) If element already exists within the Disjoint set, the function does nothing and returns false. If element does not exist in the DisjointSet, this function will add it to the DisjointSet by: make a new SetList object containing only one node, with the element as only value in the SetList adding a new dictionary entry where element is the key and a reference to the node containing element as the value return true Suppose we ran the following code:     ds = DisjointSet()    ds.make_set("cat")    ds.make_set("dog")    ds.make_set("fish")…

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Establish a linked queue, and run operations in the linked queue. General operations include：Create queue, one element enqueue, one element dequeue, check if the queue is full. Implementation of algorithm Header file typedef int DataType;   typedef struct Node {             DataType data;             struct Node *next; }Lnode; //define node type   typedef struct Qu {             Lnode *front;             Lnode *rear;      } Queue;//queue type   Source file #include <stdio.h> #include <stdlib.h> #include <string.h> #include <malloc.h> #include "queue.h"   Queue * Initiate_queue()//Initial queue with head node, return pointer of the queue. {               }   int Queue_empty (Queue *queue)//Check if the queue if empty. If it is empty return 1 else return0. {               }   void En_queue(Queue *queue, DataType node)//Enqueue {                         }   DataType De_queue(Queue *queue)//Dequeue a node, return its value. {             Lnode *de_node;…

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