The numpy module contains functions to generate random permutations. Given a non-negative integer n, every permutation of 2n numbers can beturned into a matching by taking the first half of the permutation entries (i.e., the first n numbers) and connecting each of them to the corresponding entry in the secondhalf (i.e., the last n numbers). Use this method to write a function random_matching that takes n and returns a randomly selected matching of 2n numbers in theform of a list of n tuples, where each tuple contains two integers.Note: Ensure that the tuples are returned such that the first integer is less than the second integer.To demonstrate that your code works, draw the arc diagrams for five randomly chosen matchings of 20 numbers.

You can achieve this using the `numpy` library to generate random permutations and then create the…

Answered: The numpy module contains functions to…

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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Write a function that is given a list of int id’s as a parameter, the id of the person looked for, and the length of the array. Use the data: Bob 123456 89 Suki 234567 77 Felix 345678 55 Julie 456789 67 The function searches the id array and returns the index of the id or –1 if the id does not exist. The main program outputs the name of the person at that index or a message that the person was not found. The name array (up to length number of students) and id array are declared in function main. Show all the declarations and the actual call. A sample run may look like the following: int SearchPerson(const int id[], int length,int who); Enter the id of the person 345678 That person is: Felix with a mark of 55 Enter the id of the person 444444 That person does not exist. in C++ please use basic coding I'm not…
Write a function that is given a list of int id's as a parameter, the id of the person looked for, and the length of the array. Use the data: Bob 123456 89 Suki 234567 77 Felix 345678 55 Julie 456789 67 The function searches the id array and returns the index of the id or -1 if the id does not exist. The main program outputs the name of the person at that index or a message that the person was not found. The name array (up to length number of students) and id array are declared in function main. Show all the declarations and the actual call. A sample run may look like the following: int SearchPerson(const int id[], int length,int who); Enter the id of the person 345678 That person is: Felix with a mark of 55 Enter the id of the person 444444 That person does not exist.
Using JavaScriptDefine a function getMonth which accepts number from 1 to 12 as an argument and return the descriptive name of the month. For example: getMonth(1) should return January while getMonth(12) returns December, finally getMonth(-1) returns null. Use array or object to define a list of names for the month and refrain from using if statement to check the argument if it's 1, 2, etc.
Write a function def reduced (n): n is a positive int number, greater than 0. The digit 0 does not appear in n. The function returns a positive int number such that includes all digits of n, but only NOT MORE THAN the first 2 most left ones for each digit. examples : reduced(474234524274377)== 474235273 reduced(6666666)=66 reduced(55555777779999966666)==55779966 reduced(5796)==5796 Requirements : Must NOT use strings. Must NOT use recursion. The function should be efficient in Time and Space.
Write a function verifsort that accepts a list as a parameter, check if the list elements are sorted and returns: 1 - if the list is sorted in ascending order, 2 – if the list is sorted in descending order, and 0 – if the list is not sorted. Write a function listsort which accepts a list as a parameter, and sorts it in ascending order. You can use any standard sorting algorithm, but don’t use built-in sort methods and functions. The function must sort and return the list. Write a script that asks user to enter 10 integer numbers, creates a list from those numbers, then calls verifsort function to detect if this list is sorted, prints message (list is sorted or list is not sorted) and if it’s not sorted then calls listsort function and prints the sorted list after listsort
Up for the count def counting_series(n): The Champernowne word 1234567891011121314151617181920212223... is an infinitely long string of digits made up of all positive integers written in ascending order without any separators between the individual numbers. This function should return the integer digit that lies in the position n of the Champernowne word, position count again starting from zero as usual. Of course, the automated tester will give your function values of n large enough that anybody trying to solve this problem by explicitly constructing the series as a string would run out of time and space long before receiving the answer. Instead, you should observe that the structure of this infinite sequence is quite straightforward, as it starts with 9 single-digit numbers, followed by 90 two-digit numbers, followed by 900 three-digit numbers, and so on. Such a predictably self-similar structure allows you to skip over prefixes of this series in exponentially widening leaps and…
Up for the count def counting_series(n): The Champernowne word 1234567891011121314151617181920212223... is an infinitely long string of digits made up of all positive integers written in ascending order without any separators between the individual numbers. This function should return the integer digit that lies in the position n of the Champernowne word, position count again starting from zero as usual.Of course, the automated tester will give your function values of n large enough that anybody trying to solve this problem by explicitly constructing the series as a string would run out of time and space long before receiving the answer. Instead, you should observe that the structure of this infinite sequence is quite straightforward, as it starts with 9 single-digit numbers, followed by 90 two-digit numbers, followed by 900 three-digit numbers, and so on. Such a predictably self-similar structure allows you to skip over prefixes of this series in exponentially widening leaps and…
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…
Suppose you have a dictionary of survey responses: keys are student names values are favourite ice cream flavours (e.g. "chocolate", "vanilla", "strawberry", etc.) Write a function that takes a dictionary of survey responses and returns a new dictionary where: keys are ice cream flavours and values are number of students with that favourite flavour. For example: Test survey = {"Howlett": "vanilla", "Grey": "chocolate", "Munroe": "vanilla", "Summers": "strawberry", "Xavier": "strawberry", "Drake": "strawberry"} print (survey_results (survey)) Result {'vanilla': 2, 'chocolate': 1, 'strawberry': 3}
Write a function decimal_to_binary(decimal_number) that takes in a non-negative integer and returns it in binary as an integer representation. Solve this problem using recursion. Use a helper function (with extra parameters) to handle the recursion.
int getMax(int arr[], int n) { intmx=arr[0]; for (inti=1; i<n; i++) if (arr[i] >mx) mx=arr[i]; returnmx; } Can u give me the code for this one as well....this is the first function and countsort is the second
There is a large pile of socks that must be paired by color. Given an array of integers representing the color of each sock, determine how many pairs of socks with matching colors there are. Example There is one pair of color and one of color . There are three odd socks left, one of each color. The number of pairs is . Function Description Complete the sockMerchant function in the editor below. sockMerchant has the following parameter(s): int n: the number of socks in the pile int ar[n]: the colors of each sock Returns int: the number of pairs Input Format The first line contains an integer , the number of socks represented in .The second line contains space-separated integers, , the colors of the socks in the pile. Constraints where Sample Input STDIN Function ----- -------- 9 n = 9 10 20 20 10 10 30 50 10 20 ar = [10, 20, 20, 10, 10, 30, 50, 10, 20] Sample Output 3 Explanation There are three pairs of socks.

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