UH: Question 1: Write a function solution that, given a string S consisting of N letters 'a' and/or 'b' returns true when all occurrences of letter 'a'are before all occurrences of letter 'b' and returns false otherwise.Examples:1. Given S = "aabbb", the function should return true.2. Given S = "ba", the function should return false.3. Given S = "aaa", the function should return true. Note that 'b' does not need to occur in S.4. Given S = "b", the function should return true. Note that 'a' does not need to occur in S.5. Given S = "abba", the function should return false.Write an efficient algorithm for the following assumptions:• N is an integer within the range [1..300,000];• string S consists only of the characters "a" and/or "b".Copyright 2009-2022 by Codility Limited. All Rights Reserved. Unauthorized copying, publication or disclosure prohibited.

Write a function solution that, given a string S consisting of N letters 'a' and/or 'b' returns true when all occurrences of letter 'a' are before all occurrences of letter 'b' and returns false otherwise. Examples: 1. Given S = "aabbb", the function should return true.

Write a function solution that, given a string S consisting of N letters 'a' and/or 'b' returns true when all occurrences of letter 'a' are before all occurrences of letter 'b' and returns false otherwise. Examples: 1. Given S = "aabbb", the function should return true.

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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Question

UH: Question 1:

Write a function solution that, given a string S consisting of N letters 'a' and/or 'b' returns true when all occurrences of letter 'a'
are before all occurrences of letter 'b' and returns false otherwise.
Examples:
1. Given S = "aabbb", the function should return true.
2. Given S = "ba", the function should return false.
3. Given S = "aaa", the function should return true. Note that 'b' does not need to occur in S.
4. Given S = "b", the function should return true. Note that 'a' does not need to occur in S.
5. Given S = "abba", the function should return false.
Write an efficient algorithm for the following assumptions:
• N is an integer within the range [1..300,000];
• string S consists only of the characters "a" and/or "b".
Copyright 2009-2022 by Codility Limited. All Rights Reserved. Unauthorized copying, publication or disclosure prohibited.

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