2. An array A contains n-1 unique integers in the range 0, n-1. So, there is one number in this range that is not in A. Design an O(n)-time algorithm for finding that number. You are only allowed to use O(4) additional space besides the array A itself. Please write your idea first. Then, present your algorithm in pseudo-code and analyze it in time and space.
2. An array A contains n-1 unique integers in the range 0, n-1. So, there is one number in this range that is not in A. Design an O(n)-time algorithm for finding that number. You are only allowed to use O(4) additional space besides the array A itself. Please write your idea first. Then, present your algorithm in pseudo-code and analyze it in time and space.
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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![2. An array A contains n-1 unique integers in the range (0, n- 1]. So, there is one number
in this range that is not in A. Design an O(n)-time algorithm for finding that number.
You are only allowed to use
your idea first. Then, present your algorithm in pseudo-code and analyze it in time and
O(4) additional space besides the array A itself. Please write
space.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F17312ebc-3315-4779-a281-0dae2a4182c3%2Fdd871103-631f-4209-b894-ae183c976464%2F0je6scr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. An array A contains n-1 unique integers in the range (0, n- 1]. So, there is one number
in this range that is not in A. Design an O(n)-time algorithm for finding that number.
You are only allowed to use
your idea first. Then, present your algorithm in pseudo-code and analyze it in time and
O(4) additional space besides the array A itself. Please write
space.
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