

MCQOPTIONS
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1. |
Consider the languages L1={0^{i}1^{j}|i != j}, L2={0^{i}1^{j}|i = j}, L3 = {0^{i}1^{j}|i = 2j+1}, L4 = {0^{i}1^{j}|i != 2j}. Which one of the following statements is true? |
A. | Only L2 is context free |
B. | Only L2 and L3 are context free |
C. | Only L1 and L2 are context free |
D. | All are context free |
Answer» E. | |