Practice Acceptance Condition (5.5.3) - Context-Free Grammars (CFG) and Languages
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Acceptance Condition

Practice - Acceptance Condition

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the CYK algorithm used for?

💡 Hint: What does it analyze in relation to CFGs?

Question 2 Easy

What do we check at the end of filling the table?

💡 Hint: This symbol can be seen as a 'gatekeeper.'

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the CYK algorithm help determine?

If a string is accepted by a CFG
If a grammar is consistent
If a string is a terminal symbol

💡 Hint: Remember what CYK stands for!

Question 2

True or False: The start symbol must be present for a string to be accepted in a CFG.

True
False

💡 Hint: Think about the function of the start symbol.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a CFG, derive the triangular table for the string 'aabbcc' and determine if it is accepted by the grammar.

💡 Hint: Pay attention to how substrings interact in the table.

Challenge 2 Hard

Compare the acceptance condition of the CYK algorithm with that of top-down parsers. Discuss advantages and disadvantages.

💡 Hint: Think about how different approaches handle string validation.

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Reference links

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