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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the time complexity of the naive approach for the Two Sum problem?
π‘ Hint: Consider how many times you would need to iterate through the array.
Question 2
Easy
Why is the hash map approach preferred over the naive method?
π‘ Hint: Focus on the efficiency of accessing elements.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary goal of the Two Sum problem?
π‘ Hint: Recall the definition we discussed earlier.
Question 2
The optimal solution for Two Sum uses which data structure?
π‘ Hint: Think about what structures give us quick access to elements.
Solve 2 more questions and get performance evaluation
Push your limits with challenges.
Question 1
Design an algorithm that finds more than two pairs in an array that sum to the target without duplicates.
π‘ Hint: How would you adjust your approach to store multiple pairs?
Question 2
Create a variant of the Two Sum problem where the array is sorted in ascending order. How would the approach change and what would be the time complexity?
π‘ Hint: Consider how sorting changes the way you would access elements.
Challenge and get performance evaluation