Theory of Computation

Unit 2: Context Free Grammars

Context Free Grammars & Parse Trees

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Explanation

A grammar is a set of rules that generate strings of a language.

A parse tree shows how a string was built from those rules.

Key exam points

  • CFG = (V, T, P, S)
  • Ambiguity is a property of the grammar
  • CYK needs CNF and runs in O(n^3)

Previous year questions

Convert the given CFG into Chomsky Normal Form.

2024 · 10 marks

Practice quiz

CYK algorithm requires the grammar in:

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