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user:1234 user:me (yours) |
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score:3 (3+) score:0 (none) |
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answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
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Results tagged with context-free
Search options not deleted
user 79162
Questions about the set of languages (equivalently) described by context-free grammars or accepted by (non-deterministic) pushdown automata.
1
vote
1
answer
169
views
Determining Ambiguity of grammar
I read that no LL(1) grammar can be ambiguous.
Can we just make a LL(1) predictive parser table for a grammar to determine whether it's ambiguous? If the grammar is not LL(1), can we say that grammar …
- 319
4
votes
1
answer
2k
views
Basic doubt in converting PDA to DPDA
This is the PDA to accept strings with equal number of $a$'s and $b$'s. The $\epsilon$ transition in the first state is causing nondeterminism.
When we have input a with Z at the bottom of the stack …
- 319