I need the answer as soon as possible Valid Mountain ArrayGiven an array of integers arr, return true ifand only if it is a valid mountain array.Recall that arr is a mountain array if and onlyif:arr.length >= 3There exists some i with 0 arr[i + 1] > ... > arr[arr.length - 1]Example 1:Input: arr = [2,1]Output: falseExample 2:Input: arr = [3,5,5]Output: false

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Answered: I need the answer as soon as possible

Engineering

Computer Science

I need the answer as soon as possible

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

Cryptography

Cryptography is a term used in computer science to describe secure information and communication techniques that transform messages in difficult-to-decipher ways using mathematical concepts and a set of rule-based calculations known as algorithms.

Question

I need the answer as soon as possible

Valid Mountain Array
Given an array of integers arr, return true if
and only if it is a valid mountain array.
Recall that arr is a mountain array if and only
if:
arr.length >= 3
There exists some i with 0 <i<arr.length - 1
such that:
arr[0] < arr[1] < ... < arr[i - 1] < arr[i]
arr[i] > arr[i + 1] > ... > arr[arr.length - 1]
Example 1:
Input: arr = [2,1]
Output: false
Example 2:
Input: arr = [3,5,5]
Output: false

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