Practice Coding Interview-style Problems (9.4) - Apply Data Structures and Algorithms to Solve Real-World Programming Challenges
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Coding Interview-Style Problems

Practice - Coding Interview-Style Problems

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Explain the Two Sum problem.

💡 Hint: Consider using a hash map for efficient lookup.

Question 2 Easy

What data structure can be used to check for balanced parentheses?

💡 Hint: Think about how you can manage pairs with LIFO behavior.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the approach to solving the Two Sum problem?

Using a List
Using a Hash Map
Using a Queue

💡 Hint: Think about fast retrieval of complements.

Question 2

Is the Balanced Parentheses problem solvable using a Stack?

True
False

💡 Hint: Recall how stacks work with LIFO.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given an array of integers, implement a solution for the Two Sum problem to return the indices of the two numbers such that they add up to a specific target. Optimize for time complexity.

💡 Hint: Consider edge cases like negative numbers.

Challenge 2 Hard

Create a function that checks if a string of parentheses is balanced. Discuss how your approach can handle nested characters.

💡 Hint: Consider scenarios where there are mismatched types like '{[()]}' or '((()))'.

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Reference links

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