GATE 1991
The language L = {a^n b^n | n ≥ 1} is not regular. This can be formally proven using:
Related Theory of Computation PYQs
The problem of determining whether an arbitrary context-sensitive grammar generates any words (emptiness problem for CSGs) is:
How many states are present in the minimal DFA that accepts all binary strings of length at most 2?
Let L be the set of all binary strings where the number of 0s is equal to the number of 1s. L is:
Let Σ = {a, b}. The language L = {a^n b^m | n ≥ 0, m ≥ 0, and n + m ≤ 10} is:
What is the minimum number of states in a DFA that accepts all strings over {0, 1} ending with '010'?
Which of the following languages over {a, b} is regular?
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