You are given an array A of size n which contains integers (not in any order) in the range[0, n - 1]. Give a linear time algorithm to print all integers that appear more than once inthe array A, using a O(1) additional space, i.e. cannot use external data structure or hashtables. Justify why your algorithm is linear. For convenience, assume the array A starts atindex o.2.4

from collections import Counterdef printRepeat(ar, num): frequency = Counter(ar) for i in frequency:…

Answered: en an array A of si Give a linear time…

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en an array A of si Give a linear time a ,using a O(1) addi ify why your algor

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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Concept explainers

Counting sort

The counting sort algorithm sorts an array’s contents by counting the repetition of each element that occurs in the array. A counting sort algorithm is a stable algorithm that works the best when the range of elements in the array is small, say for example from 0 to 9. The count which is the number of repetitions of an element in the array is mapped to an index of an auxiliary array, which is then saved in an auxiliary array. The counting sort algorithm has a stable time complexity of the order of O(size of array + size of auxiliary array). Let’s discuss the algorithm in detail as follows.

Question

You are given an array A of size n which contains integers (not in any order) in the range
[0, n - 1]. Give a linear time algorithm to print all integers that appear more than once in
the array A, using a O(1) additional space, i.e. cannot use external data structure or hash
tables. Justify why your algorithm is linear. For convenience, assume the array A starts at
index o.
2.4

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