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MCQ (Single Correct Answer)
GATE CSE 2018
Consider the following languages:
I. {ambncpdq ∣ m + p = n + q, where m, n, p, q ≥ 0}II. {ambncpdq ∣ m = n and p = q, where m, n, p, q ≥ 0}III. {ambncpdq ∣ m = n = p and p ≠ q, where m, n, p, q ≥ 0}IV. {ambncpdq ∣ mn = p + q, where m, n, p, q ≥ 0}Which of the above languages are context-free?(A) I and IV only(B) I and II only(C) II and III only(D) II and IV only
