UNIVERSITI MALAYSIA SARAWAK KOTA SAMARAHAN SARAWAK PSD2023 ALGORITHM & DATA STRUCTURE

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1 STUDENT IDENTIFICATION NO UNIVERSITI MALAYSIA SARAWAK KOTA SAMARAHAN SARAWAK FAKULTI SAINS KOMPUTER & TEKNOLOGI MAKLUMAT (Faculty of Computer Science & Information Technology) Diploma in Multimedia Technology THIRD, SIXTH, SEMESTER FINAL EXAMINATION, 2013/2014 SESSION PSD2023 ALGORITHM & DATA STRUCTURE DMTWEF1/12, DSEW-E-F-1/13 7 MAY PM 4.00 PM (2 HOURS) INSTRUCTION TO STUDENT 1. This Examination paper has TWELVE (12) printed pages. 2. This question paper consists of FOUR (4) sections. Section A : Answer ALL questions. Section B : Answer ALL questions. Section C : Answer ALL questions. Section D : Answer ALL questions. 3. Please write all your answers in the Answer Booklet provided.

2 SECTION A : OBJECTIVE QUESTIONS (20 MARKS) INSTRUCTION : ANSWER ALL QUESTIONS. 1. Which of the following is not a protection level provided by classes in C++? A. protected B. hidden C. private D. public 2. What is a constructor? A. A class automatically called whenever a new object of this class is created. B. A class automatically called whenever a new object of this class is destroyed. C. A function automatically called whenever a new object of this class is created. D. A function automatically called whenever a new object of this class is destroyed. 3. The operation of processing each element in the list is known as. A. sorting B. merging C. inserting D. traversal 4. In which linked list that the last node address is a null? A. Singly linked list B. Doubly linked list C. Circular list D. None of the above SFCS Page 2 of 12

3 5. A linear list that has node that point to the predecessor and successors nodes is called as. A. Singly Linked List B. Circular Linked List C. Doubly Linked List D. Linear Linked List 6. Consider a linear data structure that operates on the principles of Last In - First Out. Which of the following is the type of data structure will provide this functionality? A. Queue B. Linked List C. Stack D. Tree 7. Queue is a list. A. LIFO B. LILO C. FILO D. FIFO 8. Which one of the following is not a linear data structure? A. Array B. Binary Tree C. Queue D. Stack SFCS Page 3 of 12

4 9. Inserting an item into the stack when stack is not full is called. Operation and deletion of item form the stack, when stack is not empty is called operation. A. push, pop B. pop, push C. insert, delete D. delete, insert 10. is very useful in situation when data have to stored and then retrieved in reverse order. A. Stack B. Queue C. List D. Link list 11. A graph is a collection of nodes, called And line segments called arcs or that connect pair of nodes. A. vertices, edges B. edges, vertices C. vertices, paths D. graph node, edges 12. Which data structure represents a waiting line and limits insertions to be made at the back of the data structure and limits removals to be made from the front? A. Stack. B. Queue. C. Binary tree. D. Linked list. SFCS Page 4 of 12

5 13. What kind of linked list begins with a pointer to the first node, and each node contains a pointer to the next node, and the pointer in the last node points back to the first node? A. Circular, singly-linked list. B. Circular, doubly-linked list. C. Singly-linked list. D. Doubly-linked list. 14. How many pointers are contained as data members in the nodes of a circular, doubly linked list of integers with five nodes? A. 5 B. 8 C. 10 D Which of the following statements about stacks is incorrect? A. Stacks can be implemented using linked lists. B. Stacks are first-in, first-out (FIFO) data structures. C. New nodes can only be added to the top of the stack. D. The last node (at the bottom) of a stack has a null (0) link. 16. Which stack operation accomplishes retrieving the top item on the stack, leaving the stack unchanged? A. Push B. Pop C. GetStackTop D. CreateStack SFCS Page 5 of 12

6 17. Write the postfix notation of A + B * C / D A. A B C D + * / B. A B * / C D + C. A B C D * + / D. A B C * D / Write the prefix notation of A + B * (C D) / E A. A B C D * E / + B. A B C D E / * + C. + A / * B C D E D. + A * B / - C D E 19. Which of the following statements is NOT true for binary tree? A. Every binary tree has at least one node. B. Every non-empty tree has exactly one root node. C. Every node has at most two children. D. Every non-root node has exactly one parent. 20. If each node in a tree has a value greater than every value in its left subtree and has value less than every value in its right subtree, the tree is called. A. complete tree B. full binary tree C. binary search tree D. AVL tree SFCS Page 6 of 12

7 SECTION B : TRUE OR FALSE QUESTIONS (10 MARKS) INSTRUCTION : ANSWER ALL QUESTIONS. 1. The data fields in the class in C++ program are by default is public. 2. Two main measures for the efficiency of an algorithm are running time and total memory usage. 3. Public means all its data members restricted from other function in a same class. 4. Array allows random access, while the linked list allows sequential access. 5. Inserting an element to the beginning of an array (that is A[0] element) is more difficult than inserting an element to the beginning of a linked list. 6. The size of linked list will be changed automatically when the user insert more data into it. 7. Linked list is a data structure that consists of a sequence of nodes each of which contains a link to the next node in the sequence. 8. Stacks can be implemented in the scenario of waiting line for the plane to take off, landing. 9. Number of branches on the path from the root to the node is known as height. 10. Every binary search tree is not a binary tree. SFCS Page 7 of 12

8 SECTION C : SUBJECTIVE QUESTIONS (45 MARKS) INSTRUCTION : ANSWER ALL QUESTIONS. Question 1 a) ADT stands for. b) Every class in C++ contain and. c) members are hidden from other modules and can only be accessed by function member of the same class. d) In a function definition s heading, the :: (double colon), used to reference identifiers in a class. (5 Marks) Question 2 a) Give ONE (1) advantage of a Linked List, as compared to an array. (2 Marks) b) Briefly explain with example of diagram TWO (2) type of linked list. (6 Marks) SFCS Page 8 of 12

9 Question 3 a) Convert the following infix expression to postfix and prefix expression: A + B * (C D) / (P R ) (5 Marks) b) Show the sequence of stack configuration in the evaluation of the postfix expression below. 2 3 * * / (13 Marks) Question Figure 1 a) Based on Figure 1 answer the following questions: i) What is the root element? ii) How many elements are in the tree? iii) How many leaves are in the tree? iv) What is the height of the tree? v) What are the ancestors of element 10? (5 Marks) SFCS Page 9 of 12

10 b) Based on Figure 1, what is the output for using the following order: i) Inorder Traversal ii) Postorder Traversal iii) Preorder Traversal (9 Marks) SFCS Page 10 of 12

11 SECTION D : PROGRAMMING QUESTIONS (25 MARKS) INSTRUCTION : ANSWER ALL QUESTIONS. Question 1 Given the Program class that consists of the following: Program code (eg: DSE) Program description (eg: Diploma in Software Engineering) Program duration (eg: 3 years) Faculty (offered by which faculty, eg: SOITMM) Program Head (name of the person incharge) class Program { private: char ProgCode[3]; char ProgDescription[30]; int ProgDuration; char ProgFaculty[20]; char ProgHead[50]; public: Program(); Program(char[], char[], int, char[], char[]); ~Program(); void setprogram(char[],char[],int,char[], char[]); char* getprogcode(); char* getprogdescription(); int getprogduration(); char* getprogfaculty(); char* getproghead(); void displayprogram(); }; SFCS Page 11 of 12

12 a) Based on a Program class, write a function definition for the following methods using C++: i) Normal constructor that set all data with values given through the parameter. (5 Marks) ii) Retriever or get method for each attributes. (5 Marks) iii) Printer method using displayprogram() defined method. (5 Marks) b) Based on Program class: i) How many constructors does class Program have? ii) What does it mean by the following statement ~Program();? iii) How many data members (attributes) does class Program have? (3 Marks) c) Write a main() program to test the class using C++. It should create TWO (2) object of class Program and then invite the user to input the program records. Finally it should print out the program records. (7 Marks) End of Page. SFCS Page 12 of 12

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