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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does it mean for a PDA to accept by final state?
💡 Hint: Think about the state the PDA ends in after processing the input.
Question 2
Easy
How does acceptance by empty stack work?
💡 Hint: Consider what needs to happen to the stack for acceptance.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a PDAs acceptance by final state mean?
- It must empty its stack
- It must reach a designated final state
- It must read the entire input
💡 Hint: Consider what is critical for acceptance in a PDA.
Question 2
True or False: A PDA can accept by empty stack without considering state.
- True
- False
💡 Hint: What is the key requirement for empty stack acceptance?
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Construct a PDA that accepts the language of correctly nested parentheses using acceptance by final state, then convert it to use acceptance by empty stack.
💡 Hint: Show how both conditions ensure acceptance of language.
Question 2
Prove that if a language can be accepted by a PDA with final state acceptance, it can also be recognized by empty stack acceptance.
💡 Hint: Reference the definitions involved in the transitions to clarify.
Challenge and get performance evaluation