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A music store owner wants to have enough of the hottest CDs in stock so people who come to buy a particular CD won't be disappointed - and the store won't lose the profit. CDs that are not sold within a certain length of time go onto the sale table where they may have to be sold at cost, if they sell at all. The owner wants to design a decision support system to predict how many copies she should purchase and what information she will need. List some of the considerations that would go into such a system as if you were the owner of the store and your business profits were at stake.
Write down the grammar for language comprising of strings which have n copies of letter a followed by same number of copies of letter b, where n > 0.
Create a class named Pet, after creating the class, create a program that makes an object of the class and prompts the user to enter the name, type, and age of his pet.
Argue that the following prob is NP Complete. Given list of positive integers, u1,u2,...un (in binary representation) and asked if there is partition of this set into 3 subsets, each of which has same sum.
In this problem, we consider a very restricted subset of Boolean expressions. Define an operator to be one of the four symbols: ¬, ∧, ∨, and →. Define a variable to be one of the five symbols
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.
Create a standard 1-tape Turing machine M to calculate the function sub3. Specifically, calculate sub3 of a natural number represented in binary.
We know by rice's theorem that none of the following problems are decidable. However,are they recursively enumerable,or non-RE? IS L(M) infinite?
Write down the algorithm for finding useless/productive nonterminals. Describe how this gives you the algorithm for whether language generated by grammar is empty.
Describe why every nonempty propositional clause, by itself, is satisfiable. Prove rigorously that every set of five 3-SAT clause is satisfiable, given that each clause mentions exactly three distinct variables.
Create a program that reads integers in range 0 .. 9999. The event stops reading if -99 is entered. Your event should use Stack to store those numbers then it used Priority Queue to print out those numbers in ascending order.
What does the term solvable mean to you? What does it mean to say that "you solved a problem"? Determine examples of problems for which you believe there are no solutions.
Give a construction that assumes you are given a DFA for L and show how to construct an NFA (with or without ε-moves) to recognize sort(L).
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