Data Structures and Algorithms The Complete Masterclass - Min Stacks
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the 'push' operation in a stack?
To remove the top item from the stack
To add an item to the stack
To view the top item of the stack
To sort the items in the stack
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which operation would you use to view the topmost item of a stack without removing it?
Pop
Top/Peek
Push
Insert
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'pop' operation do in a stack?
Removes the top item from the stack
Returns the minimum item in the stack
Adds an item to the stack
Duplicates the top item of the stack
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What additional functionality does a min stack provide over a regular stack?
It allows sorting of elements
It retrieves the minimum element in constant time
It provides the maximum element
It duplicates the stack
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the 'getMin' operation in a min stack differ from a regular stack?
It retrieves the last element
It retrieves the maximum element
It retrieves the minimum element in constant time
It retrieves the top element
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time complexity goal for retrieving the minimum element in a min stack?
O(n)
O(n^2)
O(log n)
O(1)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of maintaining a separate min stack?
To store all elements in sorted order
To duplicate the main stack
To keep track of the maximum value
To keep track of the minimum value at each step
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