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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For this assignment, you must implement the ElGamal Public-Key Encryption scheme with any programming language that you are comfortable with. The recommendation is to use C/C++ or Java. You can accomplish this assignment individually or by forming a team of 2 students. Alternatively, you can work with your team members of the previous assignment. Your program should get the "key size" from the user in terms of number of bits (for instance, 64, 128, etc). Based on the size, use Fermat or Miller-Rabin primality test algorithm to define your large prime number. You can use the existing programming packages to find a generator of your finite field. Your program should then initialize a pair of key, i.e., private and public keys. For the computations, utilize the Square-and Multiply algorithm. In fact, your program should get a plaintext from the user to perform encryption (generating the ciphertext from the plaintext) and decryption (generating the original plaintext from the ciphertext).…
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Computer Science You must count the number of strings of length 6 over the alphabet A = {x, y, z}. Any string of length 6 can be considered as a 6-tuple. For example, the string xyzy can be represented by the tuple (x,y,z,y). So the number of strings of length 6 over A equals the number of 6-tuples over A, which by product rule is N. Find N. (Use the following product rule for any finite set A and any natural number n : |A^n|=|A|^n)
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