Computer Science · Theory of Computation
Which of the following grammars generates the language L = { aibjck | i ≠ k, and i, j, k ≥ 1 }?
- 1S → AC | CB A → aA | ε B → Bc | ε C → aCc | ε | bD D → bD | b | ε
- 2S → AB A → aAb | ab B → bBc | bc
- 3S → aS | aA A → bA | bB B → CB | c
- 4S → AC | CB A → aA | a B → Bc | c C → aCc | bD | b D → bD | b✓
Correct answer
S → AC | CB A → aA | a B → Bc | c C → aCc | bD | b D → bD | b
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