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Let  be a 3cnf-formula. An  assignment to the variables of  is one where each clause contains two literals with unequal truth values. In other words an  -assignment satisfies  without assigning three true literals in any clause.
a. Show that the negation of any -assignment to  is also an -assignment.b. Let SAT be the collection of 3cnf-formulas that have an -assignment. Show that we obtain a polynomial time reduction from 3SAT to SAT by replacing each clause cI
(y1 V y2 V y3)
by the two clauses
(y1 V y2 V zI) and ( V y3 V b)
where zI is a new variable for each clause cI and b is a single additional new variable.
c. Conclude that SAT is NP-complete
Rewrite the productions for each of the following nonterminals as right regular grammars: Identifier, Float. Show the moves made using the DFSA for identifiers in accepting.
Lab #6 will introduce the various aspects of the Single-Row and Group Functions available in the Oracle Database. Most functions can be used in either the SELECT statement or the WHERE clause, but more commonly are used in the SELECT.
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1.using suffix trees give an algorithm to nd a longest common substring shared among three input strings. s1 of length
Where could errors occur in Figure and for each error, what action would you take should the error occur
If the speed of the gas relative to the rocket is 40m/s, and the mass of rocket is 4 kg, what is the initial acceleration of the rocket and what is the focal length of the lens when it is completely immersed in water of RI 4/3?
Create and implement a lexical analyzer for C-- as follows: Write the set of token types to be returned by lexical analyzer. Explain regular expressions for this set of token types.
recent research has shown that a job and a competitive remuneration package are not sufficient for attracting competent
Create the two main documents that model the current processes at Farmers Friend for their Customer Support Systems (CSS).
Prove that L is not regular. (Be particularly careful if you use the Pumping Theorem. You must choose a w that is actually in L.)
create and monitor accountability through performance management measurement at hod level for effectiveness and
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