10. Consider the union-find container given below and suppose you used path compression whenimplementing union-find.Item13467810Representative 18154 610I. After calling find on item 7, 4's representative would be 8.II. After calling find on item 6, 8's representative would be 5.III. Calling find on 3 would change one or more representatives in the table.IV. There are 2 disjoint sets represented here.V. After calling find on item 2, 6's representative would be 5.Which of the following is true given these 10 elements and their representatives?A. I onlyВ. I, IVC. IV onlyD. I, III, IVЕ. I, IV, V

Path compression` is a way of flattening the structure of the tree whenever Find is used on it.…

Answered: 10. Consider the union-find container…

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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You are given a collection of N non-empty strings, denoted by S₁, S₂,..., Sn. Then you are given N-1 operations which you execute in the order they are given. The įth operation is has the following format: 'a b' (1-based indexing, without the quotes), which means that you have to make the following changes: 1. Sa = Sa+ Sb, i.e. concatenate ath string and 6th string and store the result in ath string, 2. S = "", i.e. make the 6th string empty, after doing the previous step. You are ensured that after the ith operation, there will be no future operation that will be accessing S. Given these operations to join strings, print the last string that will remain at the end of this process. Input The first line contains an integer N (1 ≤N≤ 105) denoting the number of strings given. Each of the next N lines contains a string denoting the S₁. All the characters in the string S, are lowercase alphabets from 'a' to 'z'. The total number of characters over all the strings is at most 106, i.e Σ₁|S₁|…
Exercise 0.4 [*] For the queries below, can we still run through the intersection in time O(x + y), where x and y are the lengths of the postings lists for Brutus and Caesar? If not, what can we achieve? a. Brutus AND NOT Caesar b. Brutus OR NOT Caesar
You have the list [9, 73, 89, 20, 94, 83, 57] and it needs to be sorted in place. Based on the pass status of the list during the sorting process (where all swap operations happen in place), which of sorting algorithms is being used based on the sort process below? Please explain the reason for the choice too...
consider the following requirement If the character of the first column is 'A' or 'B' and the second column is a number, then the file is considered updated. If the first character is erroneous, then message x should be printed. If the second column is not a number, then message y should be printed. Perform cause-effect graph test for it.
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The dotted-decimal notation for the IP address 10010000 10101010 01011011 00101000 The dotted-decimal notation for the IP address 10000001 10100101 01010011 00110011 2 15 19 30 41 59 77 81 85 100 Search for element 45 in the list above using a binary search algorithm. Clearly, show the first, middle, and last indexes as well as the target in every iteration. Show all the steps taken. Use the table below as a guideline with the provided format. Instructions: Start your index at 0 Show all steps Mark the first row as header(The text will be in bold). Use the index number to show the first, last, and mid Use the floor function to find the middle element If struggling to insert a table, you may work this from a Word document and upload your work using the plus sign on the editing options. First last mid 0 1 2 3 4 5 6 7 8 9 target = 45
The Burrows-Wheeler transform (BWT) is a transformation that is used in data compression algorithms, including bzip2, and in high-throughput sequencing in genomics. Write a SuffixArray client that computes the BWT in linear time, as follows: Given a string of length N (terminated by a special end-of-file character $ that is smaller than any other character), consider the N-by-N matrix in which each row contains a different cyclic rotation of the original text string. Sort the rows lexicographically. The Burrows-Wheeler transform is the rightmost column in the sorted matrix. For example, the BWT of Mississippi is ipssm$pissii. The Burrows-Wheeler inverse transform (BWI) inverts the BWT. For example, the BWI of ipssm$pissii is mississippi$. Also write a client that, given the BWT of a text string, computes the BWI in linear time.
List experimental_data is read from input. The elements of experimental_data are separated into thirds. The first third of the data is collected in the beginning of a month, the second third in the middle of a month, and the last third in the end of a month. Integer slice_size represents the number of data in each third. Assign slice_size with len(experimental_data) // 3. Assign early_group with a slice of experimental_data from the beginning up to and excluding index slice_size. Assign mid_group with a slice of experimental_data from index slice_size up to and excluding index (2 * slice_size). Assign late_group with a slice of experimental_data from index (2 * slice_size) up to and including the end.

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