22.2.1 - Merging Frequencies
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What happens when two characters with the least frequency are merged?
💡 Hint: Think about the process of combining numbers together.
What character encoding is assigned to the last two remaining letters?
💡 Hint: What binary code would you use for two choices?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the first step in Huffman coding?
💡 Hint: Remember the strategy is to minimize representation.
True or False: Huffman coding guarantees optimal encoding for any dataset.
💡 Hint: Think about the fundamental principle of this coding method.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given the following frequencies, construct a Huffman tree and determine the codes: X(0.05), Y(0.15), Z(0.25), W(0.55).
💡 Hint: Start with the two lowest frequencies.
Explain why alternative merging strategies lead to sub-optimal trees compared to Huffman’s method.
💡 Hint: Consider trade-offs of choosing higher frequencies early.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.