Computer Science · Theory of Computation
Which set of context-free grammar production rules correctly generates the language L = {aibj | i > j ≥ 0}?
- 1S → aSb | aS | a✓
- 2S → aSb | bS | b
- 3S → abS | b
- 4S → abS | bS | b
Correct answer
S → aSb | aS | a
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