In a stack, if a user tries to remove an element from empty stack it is called _________
Stack Data Structure

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Other
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University
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Medium
Padmavati Pise
Used 817+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Underflow
Empty collection
Overflow
Garbage Collection
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Process of inserting an element in stack is called ____________
Create
Push
Evaluation
Pop
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the usual algorithm for determining whether a sequence of parentheses is balanced.
Suppose that you run the algorithm on a sequence that contains 2 left parentheses and 3 right parentheses (in some order).
The maximum number of parentheses that appear on the stack AT ANY ONE TIME during the computation?
1
2
3
4 or more
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
User perform following operations on stack of size 5 then -
push(1);
pop();
push(2);
push(3);
pop();
push(2);
pop();
pop();
push(4);
pop();
pop();
push(5);
Overflow Occurs
Stack Operations will be performed Smoothly
Underflow Occurs
None of these
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the value of the postfix expression 6 3 2 4 + – *
1
40
74
-18
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The following postfix expression with single digit operands is evaluated using a stack:
8 2 3 ^ / 2 3 * + 5 1 * -
6,1
5,7
3,2
1,5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To evaluate an expression without any embedded function calls:
One stack is enough
Two stacks are needed
As many stacks as the height of the expression tree are needed
A Turing machine is needed in the general case
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