Data Structures and Algorithms-I MCQs

Page No. 16

In a two-dimensional search tree, the root is arbitrarily chosen to be?


aeven


bodd


cdepends on subtrees


d1


View Answer odd

Insertion into a 2-d tree is a trivial extension of insertion into a binary search tree.


atrue


bfalse


ceither true either false


dNone of the mentioned


View Answer true

In what time can a 2-d tree be constructed?


aO(N)


bO(N log N)


cO(2N)


dO(M log N)


View Answer O(N log N)

In an expression tree algorithm, what happens when an operand is encountered?


acreate one node pointing to a stack


bpop the nodes from the stack


cclear stack


dmerge all the nodes



An expression tree’s nodes can be deleted by calling?


amalloc


bcalloc


cdelete


dfree


View Answer free

++a*bc*+defg is an?


apostfix expression


binfix expression


cprefix expression


dinvalid expression


View Answer prefix expression

An expression tree is created using?


apostfix expression


bprefix expression


cinfix expression


dparenthesized expression


View Answer postfix expression

Only infix expression can be made into an expression tree.


atrue


bfalse


ceither true either false


dNone of the mentioned


View Answer false

The average depth of a binary tree is given as?


aO(N)


bO(log N)


cO(M log N)


dO(√N)


View Answer O(√N)

The expression obtained by recursively producing a left expression, followed by an operator, followed by recursively producing a right expression is called?


aprefix expression


binfix expression


cpostfix expression


dparenthesized expression


View Answer infix expression

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