In this work, we ask you to design a deterministicFinite Automaton (FA) to recognise arithmeticexpressions.When we say arithmetic expression, we mean a kind ofexpression you can type in a very basic desk calculator.That is, neither variables nor brackets are allowed. Itcontains only numbers and four arithmetic operators, +,-, *, and /.The following are some examples of arithmeticexpression:1. Any number string with or without signs - e.g. 3, -1,+10, 3.14, -0.70 and 099.2. Number strings mixed with arithmetic operatorse.g. 3+5, -1+2*3, 7/10-0.7, and -1.4-+8.2.An example of FA diagram for recognising a non-negative integer is given below. You may use it as a startpoint. You need to add a few more states and transitionsto handle numbers with decimal point and signs (e.g. -5,+2, 0.21, -32.6, +99.05, but not the form 1.0E-3). Mostimportantly, you also need to add a few more things todeal with the arithmetic operators +, -, *, /.→start0-9digit 0-9

When we say arithmetic expression, we mean a kind of expression you can type in a very basic desk…

Answered: In this work, we ask you to design a…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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A postfix expression is an expression in which each operator follows its operands. Figureabove shows an examples of postfix expressions.The advantage of postfix form is that there is no need to group subexpressions in parentheses or to consider operator precedence. One may have used pocket calculators that require entry of expressions in postfix form.Write a program that simulates the operation of a calculator by scanning an integer expression in postfix form and displaying its result. The program should push eachinteger operand onto the stack. When an operator is encountered, the top two operands are popped, the operation is performed on its operands, and the result is pushed back onto the stack. The final result should be the only value remaining on the stack when the end of the expression is reached. This program scans a postfix expression and evaluates it. The Postfix expression must be followed by a space and a '?' to mark the end of the expression. One must use stack and the…
Java considers the String data type as non-primitive, because it contains a sequence of characters and hence there is a predefined class called String dedicated to String processing. The String class has a lot of functions and continues to grow. See https://www.tutorialspoint.com/java/java_strings.htm for more on strings. Your task is to then create a java program that when give a sentence will replace the first occurrence of NUST with Namibia University of Science and Technology. Sample run 1: --- Input ---Welcome to my NUST --- Expected output (text)---Welcome to my Namibia University of Science and Technology. Sample run 2: --- Input ---The nust is a great institution of high learning. --- Expected output (text)---The Namibia University of Science and Technology is a great institution of high learning. Sample run 3: --- Input ---The NuSt was renamed from Polytechnic Of Namibia under Act No. 7 of 2015. --- Expected output (text)---The Namibia University of Science and…
Java considers the String data type as non-primitive, because it contains a sequence of characters and hence there is a predefined class called String dedicated to String processing. The String class has a lot of functions and continues to grow. See https://www.tutorialspoint.com/java/java_strings.htm for more on strings. Your task is to then create a java program that when give a sentence will replace the first occurrence of NUST with Namibia University of Science and Technology. Sample run 1: Enter a sentence: Welcome to my NUST. Output: Welcome to my Namibia University of Science and Technology. Sample run 2: Enter a sentence: The nust is a great institution of high learning. Output: The Namibia University of Science and Technology is a great institution of high learning.
A spell checker in a word processing program makes suggestions when it finds a word not in the dictionary. To determine what words to suggest, it tries to find similar words. One measure of word similarity is the Levenshtein distance, which measures the number of substitutions, additions, or deletions that are required to change one word into another. For example, the words spit and spot are a distance of 1 apart; changing spit to spot requires one substitution (i for o). Likewise, spit is distance 1 from pit since the change requires one deletion (the s). The word spite is also distance 1 from spit since it requires one addition (the e). The word soot is distance 2 from spit since two substitutions would be required. a. Create a graph using words as vertices, and edges connecting words with a Levenshtein distance of 1. Use the misspelled word “moke” as the center, and try to find at least 10 connected dictionary words. How might a spell checker use this graph? b. Improve the method…
Please Use Only C++ Language. C++ Language answer will get the upvote surely. The chef has N marks. Each marker has a cap. For each valid i, the ith tag has color ai And initially, for each valid i, the cap colour on the ith mark is also ai. The chef wants to rearrange the caps so that no tag has the same color as the cap. (Obviously, each brand must have exactly one cap.) Can he, do it? If he can, find one such way to rearrange the caps. If there are multiple solutions, you can find any. Input 2 9 111222333 2 11 Output Yes 22 23 33 111 No
Please answer in Python or Java: In this assignment, you will do an implementation of the Huffman Code. If you have the Data Structures book for this class, on pages 415-421 is the theory for encoding a String using the Huffman Code. There is also a PDF of these pages on the class website. Your task is to develop a proof of concept of the Huffman Code and demonstrate it by taking a String and encoding it. The Huffman Code requires knowledge of a few data structure concepts discussed in class: Priority Queues Binary Trees Recursion Arrays and/or Linked Lists In your program, you will demonstrate an understanding of all these concepts by developing your own priority queue, node, binary tree, array and/or linked list, and use of recursion to support the Huffman Code encryption algorithm. Read through the theory of the Huffman Code in the text and then write a program that can take a String and encrypt it. For example, given a string “Hello World”, the program should apply the…
although java has the rule that the left operand of every binary operator is evaluated before the right operand, most languages give the compiler the freedom to choose which operand is evaluated first. when expressions have side effects, the value of the expression can be different depending upon which order is used. give an example in c++ of an expression whose value depends upon the evaluation order. show the orders that produce different values and the values they produce. explain what side effect is the expression contains.(dont copy and coursehero ans please) need elaborative ans
Given the month and the year, you are required to print the Georgian Calendar' for that month. For example, the calendar for the month of September 2017 is: SM T W T FS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 The solution to this problem can be rather complex, so we will use functional abstraction to break it down into smaller parts. You are advised to implement and test each part (by defining a suitable main function) before moving on the the next part. You are to implement the following functions: 1. bool is leap_year(int year) to determine if a given year is leap. Note that not all years which are multiples of 4 are leap. Centuries are not leap unless they are multiples of 400. 2. int days_in_month(int month, int year) that takes the month (an integer from 1 to 12) and year, and returns number of days in the given month (an integer from 1 to 31). Note that you should use the is_leap_year function to determine if February has 28 or 29 days.…
In this practical assignment, you are going to implement a simple Rock, Paper, Scissors game in C++. Two players compete and, independently, choose one of Rock, Paper, or Scissors. They then simultaneously declare their choices. The winner of the game is determined by comparing the choices of the players. Rock beats Scissors, Scissors beats Paper, Paper beats Rock. Your implementation needs to adhere to an approved* abstraction and interface for the human player, referee and computer player. One possible abstraction and interface based on this abstraction is shown below. This is the one we discussed in this week's workshp: A possible interface for my RPS game based on this abstraction. Human Human( ); // constructorchar makeMove( ); Computer Computer( ); // constructorchar makeMove( ); Referee Referee( ); // constructorchar refGame(Human player1, Computer player2)// returns the outcome for player1: 'W', 'L' or 'T' (Win, Lose, Tie) You can choose to implement this interface.…
Write the following function in Lisp: a function that takes one parameter that you can assume to be a symbol named after a day of the week (no need to check it), such as 'monday, and returns the symbol for the next day. For example, (next-day 'tuesday) should return the symbol 'wednesday. Implement this function with a complex conditional.
Note: Please Answer in C# language only There is an N of components, represented by the strings S1,S2, .... SN into the kitchen. The chef took all the ingredients, put them in a cauldron and mixed them. In the cauldron, the letters of the strings representing the ingredients are completely shuffled, so that each letter appears in the cauldron as many times as it has appeared in all the strings combined; now the cook can take out one letter from the cauldron at will (if that letter appears in the cauldron more than once, it can be taken out that many times) and use it in a dish. Complete Food is a "chef" chain. Help the chef find the maximum number of complete meals he can make! Input 1 3 Code Chef hacker Output 1
Write a lisp function that prints out the calendar for the current month. This function should take 2 parameters: the day of the week that the month starts from as an index (0 for Sunday, etc.) and the number of days in the month. For example, if you call the function (calendar 2 30) Print the initial of each day on the first line using the list of days defined at the previous exercise, the capitalized symbol-name as before, and the function substring to extract the first letter of the string. For example, the call: (substring "Sunday" 0 1) returns the string "S".

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