Preconditions: a fix A = [a0;a1,--- , an=1].natural n(length of the arrangement) and a natural m. Post-conditions: the array contains a permutation of the original values such that all elements appear first in A less than m, followed by all elements in A equal to m, and ending with all the elements in A older than m. TIERSORT(A, n, m) 1: i = 0 2: j = 0 3: k = n -1 4: while j <= k do 5: if Alj] > m then aur = A[j] AL = A[k] A[k] = aur 6: 7: 8: 9: k-- else if Alj] = m then j++ else 10: 11: 12: aur = A[i] A[i] = Alj] AG] = aur 13: 14: 15: 16: i++ j++ 18: end if 19: end while 17: a) Show that TierSort That's right. b) Determine the complexity of TierSort in the best and worst case.

Preconditions: a fix A = [a0;a1,--- , an=1].natural n(length of the arrangement) and a natural m. Post-conditions: the array contains a permutation of the original values such that all elements appear first in A less than m, followed by all elements in A equal to m, and ending with all the elements in A older than m. TIERSORT(A, n, m) 1: i = 0 2: j = 0 3: k = n -1 4: while j <= k do 5: if Alj] > m then aur = A[j] AL = A[k] A[k] = aur 6: 7: 8: 9: k-- else if Alj] = m then j++ else 10: 11: 12: aur = A[i] A[i] = Alj] AG] = aur 13: 14: 15: 16: i++ j++ 18: end if 19: end while 17: a) Show that TierSort That's right. b) Determine the complexity of TierSort in the best and worst case.

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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array unordered Arr has unsorted integers. SortedArr is an integer array. SortedArr performs which task better than unsortedArr? Use the fastest algorithms. Inserting a new element II Searching for a given element III Calculating the mean of the elements (A) I alone (B) II alone (C) III alone (D) I and II alone (E) I, II, and III
In a non-empty array of integers, the priority of a number is determined by thefrequency of its occurrence. Elements are added as they come but the most frequentelement is deleted first. If two elements have the same priority, then the elementwhich came first will be deleted first. For example: nums = [1,2,3,1,3,1,3,2,3]. Afterthe first deletion now the array will be num={1,2,1,1,2}. Implement a priority queuefor the aforementioned scenario.
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