DSA_3

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1. Define a recursive function F( n ) as following: If n > 0 then F( n ) = n x F(n-1) If n = 0 then F( n ) = 1. As such, what is the value of F(5)?

120

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2. Which of the following stack operations could result in stack underflow?

Is_empty

Top

Pop

Push

3. Which of the following is the appropriate statement concerning data sorting methods?

4. Which formula is the best approximation for the depth of a heap with n nodes?

The square of n

The number of digits in n (base 10)

Log (base 2) of n

5. Given a tree T in the box. What is the order of nodes visited using a pre-order traversal?

X S Z Y R W P U T V

X Z Y S P W U V T R

R S X Y Z T U W P V

R S T X Y U V Z W P

6. Suppose cursor points to a node in a linked list (using the node definition with member functions called data and link). What Boolean expression will be true when cursor points to the tail node of the list?

(cursor->link( ) == NULL)

(cursor->data( ) == NULL)

(cursor == NULL)

(cursor->data( ) == 0.0)

7. Among Breadth-first search and Depth-first search, which graph traversal algorithm uses a queue to keep track of vertices that need to be processed?

Only Depth-First Search

Only Breadth-first search

Both Breadth-first search and Depth-first search

None of them

8. Figure 2 is the array representation of a binary tree shown in Figure 1. What should be put into the space "a"?

9. Consider the following pseudo code: declare a stack of characters while ( there are more characters in the word to read ) { read a character push the character on the stack } while ( the stack is not empty ) { write the stack's top character to the screen pop a character off the stack } What is written to the screen for the input "cartets"?

Ccaarrtteettss

Stetrac

Cartets

Serc

10. Which of the following is an appropriate description concerning the list and/or array structures?

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Mar 20, 2022

Quiz Edited by
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May 02, 2012

Quiz Created by
Lethao.2c08

Dsa_3