5. L2= {190190ª 10ª | a ≥ 0} 6. Using L₂ from the previous problem, is L₂ € Eo? Circle the appropriate answer and justify your answer. YES or NO Using L₂ from the previous problem, is L₂ € E₁? Circle the appropriate answer and justify your answer. YES or NO

5. L2= {190190ª 10ª | a ≥ 0} 6. Using L₂ from the previous problem, is L₂ € Eo? Circle the appropriate answer and justify your answer. YES or NO Using L₂ from the previous problem, is L₂ € E₁? Circle the appropriate answer and justify your answer. YES or NO

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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Question-2: A pyramids are discovered, each has a triangular base with equal sides. An n meters high pyramid is constructed by forming n layers of triangles using Im cubical stones. Then layers are stacked on top of each other. The first layer is the triangle with n meters base, on top, n-1 meters base, until the top level which has only 1 stone. You are asked to calculate the number of stones needed to build a pyramid with the height n. WAIT! We just discovered that some pyramids have a secret room inside. This room is also of the same shape and structure as the pyramid with m layers of stones removed. In order for the room to be secret, m
Here is a statement about NP-complete problems: “Some NP-complete problems are polynomial-time solvable, and some NP-complete problems are not polynomial-time solvable.” Decide if this statement if true or false and provide an explanation.
A school has 100 lockers and 100 students. All lockers are closed on the first day of school. As the students enter, the first student, denoted as S1, opens every locker. Then the second student, S2, begins with the second locker, denoted as L2, and closes every other locker. Student S3 begins with the third locker and changes every third locker (closes it if it was open and opens it if it was closed). Student S4 begins with locker L4 and changes every fourth locker. Student S5 starts with L5 and changes every fifth locker, and so on, until student S100 changes L100. After all the students have passed through the building and changed the lockers, which lockers are open? Write a program to find your answer and display all open locker numbers separated by exactly one space. (Hint: Use an array of 100 Boolean elements, each of which indicates whether a locker is open (true) or closed (false). Initially, all lockers are closed.)
Correct answer will be upvoted else Multiple Downvoted. Computer science. You are playing another PC game in which you need to battle beasts. In a prison you are attempting to clear, you met three beasts; the first of them has a wellbeing focuses, the second has b wellbeing focuses, and the third has c. To kill the beasts, you can utilize a gun that, when discharged, bargains 1 harm to the chose beast. Each 7-th (I. e. shots with numbers 7, 14, 21 and so on) gun fired is upgraded and bargains 1 harm to all beasts, not only one of them. In case some beast's present measure of wellbeing focuses is 0, it can't be designated by an ordinary shot and doesn't get harm from an upgraded shot. You need to pass the prison delightfully, I. e., kill every one of the beasts with a similar improved shot (I. e. after some upgraded shot, the wellbeing points of every one of the beasts should become equivalent to 0 interestingly). Each shot should hit a beast, I. e. each shot arrangements harm to…
Interest on a credit card’s unpaid balance is calculated using the average daily balance. Suppose that netBalance is the balance shown in the bill, payment is the payment made, d1 is the number of days in the billing cycle, and d2 is the number of days payment is made before billing cycle. Then, the average daily balance is: averageDailyBalance =netBalance x d1-payment x d2d1 If the interest rate per month is, say, 0.0152, then the interest on the unpaid balance is: Interest= averageDailyBalance * 0.0152 Write a program using c++ compiler that accepts as inputnetBalance, payment, d1,d2, and interest rate per month. The program outputs the interest. Format your output to two decimal places.
Ex: Let A1 ={x, y}, A2 ={1, 2}, and A3 ={a, b}, Find A1 × A2, (A1 × A2) × A3, A1 × A2 × A3.
Python answer only. Correct answer will upvoted else downvoted. It is the ideal opportunity for your very first race in the game against Ronnie. To make the race intriguing, you have wagered a dollars and Ronnie has wagered b dollars. Yet, the fans appear to be frustrated. The fervor of the fans is given by gcd(a,b), where gcd(x,y) means the best normal divisor (GCD) of integers x and y. To make the race seriously invigorating, you can perform two kinds of activities: Increment both an and b by 1. Diminishing both an and b by 1. This activity must be performed if both an and b are more noteworthy than 0. In one action, you can play out any of these activities. You can perform self-assertive (potentially zero) number of moves. Decide the greatest energy the fans can get and the base number of moves needed to accomplish it. Note that gcd(x,0)=x for any x≥0. Input The principal line of input contains a solitary integer t (1≤t≤5⋅103) — the number of experiments.…
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⦁ What is dining philosopher problem? Using semaphores, solve the dining philosopher problem.
Correct answer will be upvoted else downvoted. Computer science. street is developed as follows: the main line comprises of 1 tile; then, at that point, a1 lines follow; every one of these lines contains 1 tile more noteworthy than the past line; then, at that point, b1 columns follow; every one of these lines contains 1 tile not exactly the past line; then, at that point, a2 columns follow; every one of these lines contains 1 tile more noteworthy than the past line; then, at that point, b2 lines follow; every one of these columns contains 1 tile not exactly the past line; ... then, at that point, a lines follow; every one of these columns contains 1 tile more prominent than the past line; then, at that point, bn columns follow; every one of these lines contains 1 tile not exactly the past line. You start from the main tile in the primary line and need to arrive at the last line (any tile of it). From your present tile, you can move to any tile in the…
The game of Pig is a simple two-player dice game in which the first player to reach 100 or more points wins. Players take turns. On each turn, a player rolls a single six-sided die: • If the player rolls a 1, then the player gets no new points and it becomes the other player's turn. • If the player rolls 2 through 6, then he or she can either o ROLL AGAIN or o HOLD: At this point, the sum of all rolls for that turn is added to the player's overall total score and it becomes the other player's turn. Write a Java program that plays the game of Pig, where one player is a human and the other is the computer. When it is the human's turn, the program should show the score of both players and the previous roll. Allow the human to input whether to roll again or hold. The computer program should play according to the following rules: Keep rolling when it is the computer's turn until it has accumulated 20 or more points, then hold. • If the computer wins or rolls a 1, then the turn ends…