Practice Using Stacks In Backtracking (35.3.3) - Sets, stacks, queues - Data Structures and Algorithms in Python
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Using Stacks in Backtracking

Practice - Using Stacks in Backtracking

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does LIFO stand for?

💡 Hint: Think about how stacks operate.

Question 2 Easy

Which method do you use to add an element to a stack in Python?

💡 Hint: What function allows us to add to the end of the list?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following is a characteristic feature of a stack?

First In First Out
Last In First Out
Ordered collection

💡 Hint: Think about the behavior of a stack compared to a queue.

Question 2

True or False: A stack can be used to implement a depth-first search algorithm.

True
False

💡 Hint: Remember how depth-first search explores paths.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design an algorithm using a stack to evaluate postfix expressions (also known as Reverse Polish Notation).

💡 Hint: Remember how you can track values and operations using push and pop efficiently.

Challenge 2 Hard

Write a function that uses recursion and a stack to reverse a string.

💡 Hint: Consider how stacks maintain order and how you can use this to reverse the input.

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Reference links

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