22.5.1 - Locally Optimal Choices
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Practice Questions
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What is Huffman coding?
💡 Hint: Think about how it deals with letter frequencies.
Define a composite node in Huffman coding.
💡 Hint: Focus on the merging process.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the basis of making local optimal choices in Huffman coding?
💡 Hint: Consider the purpose of letter frequency in encoding.
Huffman coding is considered a greedy algorithm. True or False?
💡 Hint: Think about how decisions are made with no going back.
1 more question available
Challenge Problems
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Given the following frequencies: A: 0.3, B: 0.1, C: 0.2, D: 0.4, construct the Huffman tree and determine the corresponding binary codes.
💡 Hint: Track merges carefully, assigning 0 and 1 to child nodes to create codes.
Explain the flaws of using a naive greedy algorithm in constructing a tree. Consider at least two alternative combinations and their outcomes.
💡 Hint: Think about the implications of higher frequency letters during tree construction.
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