Computer Science: An Overview (13th Edition) (What's New in Computer Science)
13th Edition
ISBN: 9780134875460
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
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Chapter 6, Problem 41CRP
Program Plan Intro
Syntax diagram:
Syntax diagram is the
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In a necessary and adequate sense, which of the following computer models is required for lexical analysis in a modern language like Java?
Finite state automata (A)Deterministic pushdown automata (B)Non-deterministic pushdown automata (C)Turing engine (D)
Can you describe an algorithm that given two context-free grammars G1 and G2 outputs YES if andonly if every string generated by G1 is also generated by G2. (I.e., output YES exactlywhen the set of strings generated by G1 is a subset of the set of strings generated by G2.)
Draw a state diagram of a Turing machine (TM) recognizing the fol-lowing language over the alphabet Σ = {0, 1, >}.L = {x > y : x, y ∈L(1(0∪1)∗) ∧bin(x) is a power of 2 ∧bin(x) > bin(y)},where bin(x) is the value of x viewed as a binary number.Note that besides edge labels like 0 → 1, R, we allow abbreviationslike 0 →R, standing for 0 →0, R,and 0, 1 →R, standing for 0 →0, R, 1 →1, R.
Chapter 6 Solutions
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
Ch. 6.1 - In what sense is a program in a third-generation...Ch. 6.1 - We can summarize the imperative programming...Ch. 6.1 - Prob. 4QECh. 6.2 - Why is the use of a constant considered better...Ch. 6.2 - Prob. 2QECh. 6.2 - Prob. 3QECh. 6.2 - Identity some common control structures found in...Ch. 6.2 - What is the difference between an array and an...Ch. 6.3 - Prob. 1QECh. 6.3 - Prob. 2QE
Ch. 6.3 - Why do many programming languages implement I/O...Ch. 6.3 - Prob. 4QECh. 6.3 - Prob. 5QECh. 6.4 - Prob. 1QECh. 6.4 - What is a symbol table?Ch. 6.4 - What is the difference between a terminal and a...Ch. 6.4 - Prob. 4QECh. 6.4 - Prob. 5QECh. 6.4 - Prob. 6QECh. 6.5 - What is the difference between an object and a...Ch. 6.5 - Prob. 2QECh. 6.5 - Suppose the classes PartTimeEmployee and...Ch. 6.5 - What is a constructor?Ch. 6.5 - Why are some items within a class designated as...Ch. 6.6 - Prob. 1QECh. 6.6 - Prob. 2QECh. 6.6 - Prob. 3QECh. 6.7 - Prob. 2QECh. 6.7 - Prob. 3QECh. 6.7 - Prob. 4QECh. 6 - Prob. 1CRPCh. 6 - Translate the following Python program into the...Ch. 6 - Prob. 3CRPCh. 6 - Why was it necessary to identify the type of data...Ch. 6 - Prob. 6CRPCh. 6 - Suppose the function f expects two numeric values...Ch. 6 - Suppose f is a function that returns the result of...Ch. 6 - Prob. 9CRPCh. 6 - Summarize the distinction between a machine...Ch. 6 - John Programmer argues that the ability to declare...Ch. 6 - Summarize the distinction between declarative...Ch. 6 - Explain the differences between a literal, a...Ch. 6 - a. What is operator precedence? b. Depending on...Ch. 6 - Prob. 16CRPCh. 6 - What is the difference between the meaning of the...Ch. 6 - Draw a flowchart representing the structure...Ch. 6 - Prob. 19CRPCh. 6 - Prob. 20CRPCh. 6 - Draw a flowchart representing the structure...Ch. 6 - Rewrite the following program segment using a...Ch. 6 - Summarize the following rats-nest routine with a...Ch. 6 - Prob. 24CRPCh. 6 - Prob. 25CRPCh. 6 - Suppose the variable X in a program was declared...Ch. 6 - Prob. 27CRPCh. 6 - Why would a large array probably not be passed to...Ch. 6 - Sometimes an actual parameter is passed to a...Ch. 6 - Prob. 32CRPCh. 6 - What ambiguity exists in the statement X = 3 + 2 ...Ch. 6 - Suppose a small company has five employees and is...Ch. 6 - Prob. 35CRPCh. 6 - Prob. 36CRPCh. 6 - Prob. 37CRPCh. 6 - Prob. 38CRPCh. 6 - Prob. 39CRPCh. 6 - Design a set of syntax diagrams that describes the...Ch. 6 - Prob. 41CRPCh. 6 - Prob. 42CRPCh. 6 - Add syntax diagrams to those in Question 5 of...Ch. 6 - Prob. 44CRPCh. 6 - What code optimization could be performed by a...Ch. 6 - Simplify the following program segment Y = 5 if (Y...Ch. 6 - Simplify the following program segment while (X !=...Ch. 6 - In an object-oriented programming environment, how...Ch. 6 - Describe how inheritance might be used to develop...Ch. 6 - What is the difference between the public and...Ch. 6 - a. Give an example of a situation in which an...Ch. 6 - Describe some objects that might be found in a...Ch. 6 - Prob. 53CRPCh. 6 - Prob. 54CRPCh. 6 - Prob. 55CRPCh. 6 - Prob. 56CRPCh. 6 - Prob. 57CRPCh. 6 - Prob. 58CRPCh. 6 - Prob. 59CRPCh. 6 - In general copyright laws support ownership rights...Ch. 6 - By using a high-level programming language, a...Ch. 6 - Prob. 3SICh. 6 - Prob. 4SICh. 6 - Prob. 5SICh. 6 - Suppose an amateur programmer writes a program for...Ch. 6 - Prob. 7SI
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- a) Construct First and Follows set for the following CFGs: a. S → a S S b S T | c T S d T T → c T d | ε b. S → E # E → a | ( E ) | b A A → + E | - E | * Earrow_forwardWhich of the following machine models has the required and adequate capacity for the lexical analysis of a contemporary language like Java? (A) Finite state machines (B) Automata with deterministic pushdown (C) Pushdown automata that are non-deterministic(D) Turing machinearrow_forwardBuild DPDA to show that the language L = {〖(ab)〗^(n ) aaa〖(ba)〗^(n-2) | n>2} is deterministic context freearrow_forward
- Classify the languages below into the categories regular (R), context-free but not regular (C), decidable, but not context free (D), Turing recognizable by not decidable (T),or not recognizable (N): *Check uploaded image*arrow_forwardWrite a deterministic automaton to recognize the language over {a, b, c}* such that every string of a’s must be followed by at least two c’s and every string of c’s must be followed by at least three b’s. {accepted strings: accbbb , aaacccbbbcbbb }arrow_forwardGive a decision procedure (algorithm) to answer the question: Given a FA M accepting a language L and a string x, is x a suffix of some string in L? (i.e., does there exist a string z such that zx is in L?)arrow_forward
- The language composed of all strings over the alphabet {a,b} of the form: zero or more a's followed by zero or more b's, i.e., {"", a, b, aa, ab, bb, aaa, aab, abb, bbb, ...}, where "" is the empty string, is a regular language: show why this is. Note that you may use any line of argument on regular languages, e.g., by showing that it can be constructed using the properties ("Regular Language: a formal definition"), or by drawing the finite state automaton (FSA), or giving its description.arrow_forwardWhat is the solution for this question (using java language with object classes and string , also without this. )arrow_forwardDescribe an algorithm that given two context-free grammars G1 and G2 outputs YES if and only if every string generated by G1 is also generated by G2. (I.e., output YES exactly when the set of strings generated by G1 is a subset of the set of strings generated by G2.) Would such an algorithm be possible? why or why notarrow_forward
- subject theory of computer science Consider the following grammar G = {S, A}, S = {S}, ∑ = {a, b}, P : S → aS | aA; A → bA | b; Which of the following regular expression denotes L(G)? A.a(ab)*b B.a*b* C.aa*bb D.a*ab*barrow_forwardCould you kindly assist me with question 2.10? I'm finding it challenging to address without first understanding question 2.9. While I've attempted to solve the problem, my answer, which I've included in the photo, seems to be incorrect. I'm uncertain about why it's wrong. Could you provide guidance specifically on question 2.10?question for 2.10:2.10 Give an informal description of a pushdown automaton that recognizes the language A in Exercise 2.9. question for 2.9 2.9 Give a context-free grammar that generates the language A = {a i b j c k | i = j or j = k where i, j, k ≥ 0}. Is your grammar ambiguous? Why or why not?arrow_forwardCreate a formal definition of the language that a Turing machine can understand by writing it out using the set notation.arrow_forward
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