The total number of elements in a stack at a given point of ...

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The total number of elements in a stack at a given point of time can be calculated from the value of______.

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Given below is the Node class to perform basic list operations and a Stack class with a no arg constructor. Select from the options the appropriate push() operation that can be included in the Stack class. Also

public void push(Object item)
{
	Node temp = new Node(item,first);
	first = temp;
	size++;
}

public void push(Object item)
{
	Node temp = new Node(item,first);
	first = temp.getNext();
	size++;
}

public void push(Object item)
{
	Node temp = new Node();
	first = temp.getNext();
	first.setItem(item);
	size++;
}

public void push(Object item)
{
	Node temp = new Node();
	first = temp.getNext.getNext();
	first.setItem(item);
	size++;
}

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MCQ

Stacks cannot be used to

implement recursion

evaluate an arithmetic expression

allocate resources (like CPU) by the operating system

convert a given arithmetic expression in infix form to its equivalent postfix form

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MCQ

The prefix of (A+B)*(C-D)/E*F is:

/+-AB*CD

/*+-ABCD*EF

*/*+AB-CDEF

**AB+CD/EF

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MCQ

An item that is read as input can be either pushed to a stack and later popped and printed, or printed directly. Which of the following will be the output if the input is the sequence of items 1, 2, 3, 4, 5 ?

5 4 3 1 2

3 4 5 1 2

3 4 5 2 1

1 5 2 3 4

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Which is/are the application(s) of stack

Function calls

Large number Arithmetic

Evaluation of arithmetic expressions

All of the above

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Abstract data types

Arrays

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Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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