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MCQ

Prefix notation is also known as

Reverse Polish Notation

Reverse Notation

Polish Reverse Notation

Polish Notation

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MCQ

Select the code snippet which return true if the stack is empty, false otherwise.

public boolean empty()
{
     return q2.isEmpty();
}

public boolean empty() 
{
     return q1.isEmpty() || q2.isEmpty();
}

public boolean empty() 
{
     return q1.isEmpty();
}

public boolean empty() 
{
     return q1.isEmpty() & q2.isEmpty();
}

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MCQ

Which among the following is not a palindrome?

Madam

Dad

Malayalam

Maadam

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MCQ

Assume that the operators +,-, X are left associative and ^ is right associative.The order of precedence (from highest to lowest) is ^, X, +, -. The postfix expression for the infix expression a + b X c

abc X+ def ^^

abc X+ de^f^

ab+c Xd

-+aXbc^ ^def

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MCQ

Which of the following is an example of Postfix expression ?

(A + B) / C

A B C ^ / D E * + A C * -

* + A B C

None of these

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MCQ

In a computer system, when an __________ expression in an infix notation needs to be evaluated, it is first converted into its postfix notation?

Algebraic

Arithmetic

Trigonometric

Geometric

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Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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