Suppose that a procedure can be broken down into a sequence of two tasks. If there are ways to do the first task and for each of these n1 ways of doing the first task, there are n2 ways to do the second task, then there are n1 n2 ways to do the : procedure. this procedure called Mult Rule O Sum Rule O Product Rule O Add Rule O

Suppose that a procedure can be broken down into a sequence of two tasks. If there are ways to do the first task and for each of these n1 ways of doing the first task, there are n2 ways to do the second task, then there are n1 n2 ways to do the : procedure. this procedure called Mult Rule O Sum Rule O Product Rule O Add Rule O

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 midterm exam has two parts. Part 1 consists of ten multiple choice questions. Each question hasfour choices, labeled (a), (b), (c), and (d), and one may pick any combination of responses on each ofthese questions. For example, one could choose just (a) alone on one question, or both (b) and (c),or all four possibilities, or none of them. In Part 2, one may choose either to answer eight true/falsequestions, or to select the proper definition of each of seven terms from a list of ten possible definitions.Every question must be answered on whichever portion (true/false or definition) of Part 2 is chosen,but one is not allowed to complete both the true/false and the definition portions. How many waysare there to complete the exam?
Programming in Python Unit 3 Assignment2InstructionsWrite a program to simulate a bank transaction. There are two bank accounts: checking and savings.First, ask for the initial balances of the bank accounts; reject negative balances and set to zero. Then askfor the transaction; options are deposit, withdrawal, and transfer. Then ask for the account; options arechecking and savings. Then ask for the amount; reject transactions that overdraw an account. At theend, print the balances of both accounts.
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…
Python Language Q2: Ginormous Campus The campus is pretty big. There are n buildings scattered around it, numbered from 0 to n-1. These buildings are so far away from each other that the only way to get from one to another is to take a campus bus. There are m campus bus routes. The i-th one (0 <= i < m) takes you from building u_i to building v_i (but not the other way around). These buses run very frequently. Professor Zingaro is deciding where to hold his CS lectures. He believes a building x is accessible from a building y if you can get from y to x taking at most two buses. For his students’ convenience, he wants to hold his lectures in the most accessible building. Help him out by telling him how many buildings the most accessible building is accessible from. In addition, list all buildings that are the most accessible. Input The first line of the input contains two space-separated integers n and m, denoting the number of buildings and bus routes, respectively. m lines…
Writing in C++ language the round robin algorithm CODE, to solve this problem. ARRIVAL 0 PROCESS A B с D TICKS PROCESS A B с D 7 3 12 4 This is the result you have to get 2 6 20 t 7 3 12 4 T 18 7 26 9 NOTE: YOU MUST PLACE THE RESOLUTION TEXT CODE TO COPY, NOT HANDWRITTEN AND NOT ON IMAGE.
Implement the scenario above using C/C++ programming language. Do apply the techniques for good programming practices.
utogwVUfWNJvmW7MGwYrTyRrJDu-ioEw19ELum82_RuHi-A/formResponse?pli=1 Consider a grade-averaging scheme in which the final average of a student's scores is computed differently from the traditional average if the student has completed a make-up assignment: drop the lowest score and compute the new average. The following table shows several example scores and how they would be average using the scheme described above. Student Scores Make-Up Completed? Final Average 50, 50, 20, 80, 53 No (50 + 50 + 20 + 80 + 53)/5.0 = 50.6 30, 80, 85, 87 Yes (80 + 85+ 87)/3.0 = 84.0 75, 85, 10, 60, 90 Yes (75 + 85+ 60 + 90)/4.0 = 77.5 Consider the following incomplete StudentRecord class. Each studentRecord object stores a list of that student's scores and contains methods to compute that student's final average. public class StudentRecord private int [] scores; // contains scores.length values // scores.length > 1 // constructors and other data fields not shown // returns the average (arithmetic mean)…
Dynamic Programming
Correct answer will be upvoted else downvoted. Assume you are given two strings an and b. You can apply the accompanying activity quite a few times: pick any adjacent substring of an or b, and sort the characters in it in non-dropping request. Let f(a,b) the base number of activities you need to apply to make them equivalent (or f(a,b)=1337 in case it is difficult to make an and b equivalent utilizing these tasks). For instance: f(ab,ab)=0; f(ba,ab)=1 (in one activity, we can sort the entire first string); f(ebcda,ecdba)=1 (in one activity, we can sort the substring of the subsequent string beginning from the 2-nd character and finishing with the 4-th character); f(a,b)=1337. You are given n strings s1,s2,… ,sk having equivalent length. Compute ∑i=1n∑j=i+1nf(si,sj). Input :The principal line contains one integer n (1≤n≤2⋅105) — the number of strings. Then, at that point, n lines follow, each line contains one of the strings si, comprising of lowercase Latin…
Write a program in C that does the following. The program starts by offering the user thefollowing list of options:1. Please enter 1 to add a new record of students.2. Please enter 2 to search for a student (using its ID number).3. Please enter 3 to sort the records of students according to their ID numbers in anascending order.4. Please enter 4 to show the information of all students.5. Please enter 5 to exit the program.Notes about the program:1. After accomplishing any of the tasks (1, 2, 3, and 4) or entering an invalid value, theprogram will show the list of options again.2. Each of the first four tasks should be performed by a separate function.3. The information about each student is composed of the following attributes: Name,Surname, Specialization, and ID.4. In the second options, if the student is found, its information will be shown on thescreen. Otherwise, an error message should be displayed instead.
Write a C# program that prints a multiplication table, like this: 1 2 3 4 5 6 7 8 9 10 2 4 6 8 10 12 14 16 18 20 3 6 9 12 15 18 21 24 27 30 . . . 10 20 30 40 50 60 70 80 90 100 Your table should be created using nested for loop and all columns should be right justified. You can set the width accordingly to make it loop good.
In Python, with use of function and input parsing/ Make a method is_anagram_of(a,b) that tests if a is an anagram of b. A string a is an anagram of a string b, if it uses exactly the same letters, but the order can be different. Spaces are ignored, as well as capitalization. Examples of anagrams: "eleven plus two" - "twelve plus one" "William Shakespeare" - "I am a weakish speller" "Tom Marvolo Riddle" - "I am Lord Voldemort" "Anagrams" - "Ars manga" "television ads" - "enslave idiots" Counter examples: "bla" - "aalb" "cat" - "tact" Hint: Make a dictionary that holds how often a letter occurs in a word.