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1
GATE CSE 1994
MCQ (Single Correct Answer)
+2
-0.6
The number of sub-strings (of all lengths inclusive) that can be formed from a character string of length $$n$$ is
A
$$n$$
B
$${n^2}$$
C
$${{n\left( {n - 1} \right)} \over 2}$$
D
$${{n\left( {n + 1} \right)} \over 2}$$
2
GATE CSE 1994
Fill in the Blanks
+2
-0
The regular expression for the language recognized by the finite state automation of is _________. GATE CSE 1994 Theory of Computation - Finite Automata and Regular Language Question 85 English
3
GATE CSE 1992
MCQ (Single Correct Answer)
+2
-0.6
If $$G$$ is a context-free grammar and $$w$$ is a string of length $$n$$ in $$L(G),$$ how long is a derivation of $$w$$ in $$G,$$ if $$G$$ is Chomsky normal form?
A
$$2n$$
B
$$2n+1$$
C
$$2n-1$$
D
$$n$$
4
GATE CSE 1992
MCQ (Single Correct Answer)
+2
-0.6
Which of the following regular expression identities are true?
A
$$r\left( {^ * } \right) = r{}^ * $$
B
$$\left( {r{}^ * s{}^ * } \right){}^ * = \left( {r + s} \right){}^ * $$
C
$$\,\left( {r + s} \right){}^ * = r{}^ * + s{}^ * $$
D
$$r{}^ * s{}^ * = r{}^ * + s{}^ * $$
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Computer Arithmetic Pipelining Machine Instructions and Addressing Modes Memory Interfacing IO Interface Alu Data Path and Control Unit Secondary Memory
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