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1. Rewrite the productions for each of the following nonterminals as right regular grammars: Identifier, Float.
2. Draw a DFSA for identifiers that contain only letters and digits, where the identifier must have at least one letter, but it need not be the first character. Hint: everything to the left of the leftmost letter must be a digit.
3. Show the moves made using the DFSA for identifiers in accepting the following:
1. a 2. a2 3. a2i 4. abc 4. For C-style / * . . . * / comments, give 1. a right regular grammar 2. a regular expression 3. a DFSA
5. Can a language have no reserved words? That is, suppose every reserved word (such as if and for) were merely predefined identifier, which the programmer is free to redefine. Can such a language exist? Explain.
Redundant sequence identi cation
Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g. What ambiguity exists in the statement x?
Write down a structural induction principle for the PlayTree free type
Express the following set as a regular expression: The set of all strings of length at least three over {0,1} such that every three consecutive.
Discuss the impact of Moore's law on data center costs on such things as servers and communications equipment. List at least 3 steps or recommendations your data center can take to offset some or all of the effect of Moore's law.
How many equivalence classes does this relation have and what are they? Use these equivalence classes to construct the minimal DFA for the language.
Write a grammar for the language consisting of strings that have n copies of the letter a followed by same number of copies of the letter b, where n>0
We showed to prove that if L can be identified by DFA then the language left half(L) = {x ∈ ∑*|∃y xy ∈ L and |x| = |y|} is also regular; here |x| means length of x.
Design in JFLAP a Truing machine that takes as input a tape containing a series of n 1s, Where n >= 0, terminated by an = sign.
Write a program would read two numbers and then print all numbers between the first and the second, inclusive. Design unambiguous grammar to parse expressions
Create a finite-state machine design to turn your FPGA development board into a simple programmable music box.
Consider the language L = L1 ∩ L2, where L1 = {ww^R : w ∈ {a, b}* and L2 = {a^n b*a^n: n ≥ 0}. Write the first four strings in the lexicographic enumeration of L?
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