Practice Leftmost And Rightmost Derivations - Following A Path In The Tree (2.4)
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Leftmost and Rightmost Derivations - Following a Path in the Tree

Practice - Leftmost and Rightmost Derivations - Following a Path in the Tree

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a leftmost derivation?

💡 Hint: Think about how you select non-terminals to replace.

Question 2 Easy

What is a parse tree?

💡 Hint: Consider how derivation steps can be shown graphically.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does leftmost derivation always expand?

Rightmost Non-Terminal
Leftmost Non-Terminal
Both

💡 Hint: Consider which part of the sentential form is addressed first.

Question 2

Does the leftmost and rightmost derivation produce the same parse tree?

True
False

💡 Hint: Think about the ultimate results despite the different approaches.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a grammar with several ambiguous rules, determine how leftmost and rightmost derivations can lead to the same syntax tree, while identifying ambiguous sentence structures within.

💡 Hint: Consider how changing rule order may affect interpretations.

Challenge 2 Hard

Construct both a leftmost and rightmost derivation for a provided string in a complex grammar, illustrating the paths taken on a parse tree.

💡 Hint: Keep track of each non-terminal selected during the process.

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Reference links

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