RESIDENT EVIL 6 AiroPlane

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Data structure mcq

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The memory address of the first element of an array is called a. floor address b. foundation address c. first address d. base address The memory address of fifth element of an array can be calculated by the formula a. LOC(Array[5]=Base(Array)+w(5-lower bound), where w is the number of words per memory cell for the array b. LOC(Array[5])=Base(Array[5])+(5-lower bound), where w is the number of words per memory cell for the array c. LOC(Array[5])=Base(Array[4])+(5-Upper bound), where w is the number of words per memory cell for the array d. None of above Which of the following data structure can't store the non-homogeneous data elements? a. Arrays b. Records c. Pointers d. None Which of the following data structure store the homogeneous data elements? a. Arrays b. Records c. Pointers d. None Which of the following is not the required condition for binary search algorithm? a. The list must be sorted b. there should be the direct access to the middle element in any sublist c. ...
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Semantics of LTL

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Logical Paradigms in Computing Practical patterns of specifications: • It is impossible to get to a state where started holds, but ready does not hold: G¬(started ∧¬ready) • For any state, if a request (of some resource) occurs, then it will eventually be acknowledged: G(requested → F acknowledged). • A certain process is enabled infinitely often on every computation path: GF enabled. • Whatever happens, a certain process will eventually be permanently deadlocked: FG deadlock. • If the process is enabled infinitely often, then it runs infinitely often. GF enabled → GF running. • An upwards travelling lift at the second floor does not change its direction when it has passengers wishing to go to the fifth floor: G(floor2 ∧ directionup ∧ ButtonPressed5 → (directionup U floor5)). Here, our atomic descriptions are boolean expressions built from system variables, e.g., floor2. Important equivalences between LTL formulas: Definition: We say that two LTL formulas φ and ψ are semantically equivalent,...
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Normal form

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Logical Paradigms in Computing Normal Forms (Continue…) Conjunctive normal forms and validity An algorithm which always computes the same output CNF for a given input φ. This algorithm, called CNF, should satisfy the following requirements: 1. CNF terminates for all formulas of propositional logic as input. 2. For each such input, CNF outputs an equivalent formula. 3. All output computed by CNF is in CNF. If a call of CNF with a formula φ of propositional logic as input terminates, which is enforced by (1), then (2) ensures that ψ ≡ φ holds for the output ψ. Thus,(3)guarantees that ψ is an equivalent CNF of φ. So φ is valid iff ψ is valid. If formula φ is an input then first we have to translate all implications in φ by replacing all sub formulas of the form ψ → η by ¬ψ ∨ η. This is done by a procedure called IMPL FREE. The application of IMPL FREE might introduce double negations into the output formula. If we want to compute a CNF for ¬φ from a CNF for φ then just translate ¬φ as an...
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