character: Dr. Wong
topic: Analyzing time complexity in recursion
grade: 9
subject: Computer Science
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character: Professor Smith
topic: Understanding Big O notation
grade: 9
subject: Computer Science
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character: Ms. Johnson
topic: Recursion vs Iteration: When to use each
grade: 9
subject: Computer Science
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character: Mr. Lee
topic: Mastering recursive algorithms
grade: 9
subject: Computer Science
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