Computer Sciences > GATE 2021 SET-1 > Turing Machines
For a Turing machine M, denotes an encoding of M. Consider the following two languages.
L1 = { | M takes more than 2021 steps on all inputs}
L2 = { | M takes more than 2021 steps on some input}
Which one of the following options is correct?
A
Both L1 and L2 are decidable.
B
L1 is decidable and L2 is undecidable.
C
L1 is undecidable and L2 is decidable.
D
Both L1 and L2 are undecidable.

Correct : a

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