For each of the following problems, you should write your answer as an expression. Do notgive the final numeric value. For example, if your answer is the number of6-permutations of a set with 10 elements, you should write P(10,6) or 10!/4! or 10 x 9×8×7 × 6 × 5, but not 151200.The English alphabet contains 26 letters. How many ways are there tochoose 14 letters of the alphabet if... 2.3 ...letters cannot be repeated and the order of the letters matters?

We will be using permutations.Step 1: Determine the given:Given:n = 26k = 14where:n is the total…

Answered: For each of the following problems, you…

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 each of the following problems, you should write your answer as an expression. Do not give the final numeric value. For example, if your answer is the number of 6-permutations of a set with 10 elements, you should write P(10,6) or 10!/4! or 10 × 9 × 8 × 7 × 6 × 5, but not 151200.
Imagine that your best friend's birthday is just around the corner and she has a list of birthday gifts she wants. You want to buy not one but two gifts to her. There is a set of prices of gifts like following (2200, 850, 300, 5000, 1550, 480) Design and implement a way of finding the minimum two prices, sum up them, and display. While finding these numbers, make sure that you are using one searching and one sorting algorithm. You should also write your design in a few sentences as a comment.
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in any order. please do in python
solve in java Integer arrays originalArr and filterArr are read from input, each containing two elements. If an element in originalArr is not a multiple of the corresponding element in filterArr, replace the element in originalArr with the corresponding element in filterArr times 2. Ex: If the input is: 16 9 8 4 then the output is: 16 8 Note: Given integers A and B, A is a multiple of B only if A % B == 0. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 import java.util.Scanner; public class ReplaceNumbers { publicstaticvoidmain(String[] args) { Scannerscnr=newScanner(System.in); finalintNUM_VALS=2; int[] originalArr=newint[NUM_VALS]; int[] filterArr=newint[NUM_VALS]; inti; for (i=0; i<NUM_VALS; ++i) { originalArr[i] =scnr.nextInt(); } for (i=0; i<NUM_VALS; ++i) { filterArr[i] =scnr.nextInt(); } /* Your code goes here */ for (i = 0; i < originalArr.length; ++i) { System.out.print(originalArr[i] + " "); } System.out.println();…
Given the following array of numbers: 8 2 3 9 10 1 4 6 7 5 Show what the array looks like after each iteration of the following sorting algorithms: Bubble Selection Insertion Mergesort Only show the array contents with each algorithm. You do not need to show function call instances if recursion is used or write any code. Just show the array at key iterations of the algorithm. You can use your own words to describe them as well for more detail (but do not write any code). Show what the array looks like after each recursive iteration of the Quicksort algorithm.
Check if Array Elements are Consecutive. Given an array, we need to check if array contains consecutive elements in Python.
solve it by the OUBILD PLEASE
PHP
The first time you run algorithm A on a dataset of n elements; it is faster than algorithm B. The second time you run algorithm A on a dataset of n elements; it is slower than algorithm B. Explain how this is possible. Give an example for algorithm A and algorithm B.
The greatest common divisor of two positive integers, A and B, is the largest number that can be evenly divided into both of them. Euclid’s algorithm can be used to find the greatest common divisor (GCD) of two positive integers. You can use this algorithm in the following manner: Compute the remainder of dividing the larger number by the smaller number. Replace the larger number with the smaller number and the smaller number with the remainder. Repeat this process until the smaller number is zero. The larger number at this point is the GCD of A and B. Write a program that lets the user enter two integers and then prints each step in the process of using the Euclidean algorithm to find their GCD. An example of the program input and output is shown below: Enter the smaller number: 5 Enter the larger number: 15 The greatest common divisor is 5
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. Implement a program that randomly generates 10 integers from -100 to 100, stores them in a 1D array, and finds their maximum value. Calculate the execution time of finding a maximum. Repeat the test for 10,000 and 10,000,000 numbers. Provide your results in the form of a table below and provide a small summary. Implement a Java program that will populate a 5x5 matrix with randomly generated integers from 0 to 100. (1) print your matrix in a table form. (2) modify your code to multiply all even numbers by 10 and print the matrix. Your output of questions (1) and (2) should match the format of the following sample outputs:

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