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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define Longest Common Subsequence.
💡 Hint: Think about the definition of subsequence.
Question 2
Easy
What is an example of a pair of words with LCS?
💡 Hint: Consider letters that appear in order.
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 time complexity of the brute force method for LCS?
- O(n)
- O(n^2)
- O(n^3)
💡 Hint: Think of how many comparisons are made.
Question 2
True or False: The longest common subsequence must consist of contiguous characters from each string.
- True
- False
💡 Hint: Consider sequences with gaps.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given two strings 'AABCA' and 'BACDBA', find out the LCS. Describe your approach.
💡 Hint: Remember the recursive relationship and build your table carefully.
Question 2
Construct a case where the LCS length is maximized while minimizing matching characters.
💡 Hint: Consider non-overlapping sequences and their impact.
Challenge and get performance evaluation