Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
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.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
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.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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 '((()))'.
Challenge and get performance evaluation