What will be the value of arr[2], the third element in the vector, after this code executes?#include using namespace std;int main() {const int n = 4;int arr[n];arr[e] = 3;arr[2] = arr[e];arr[e]++;134 Consider the stack trace below for a program that does not compile. Which is the best explanation for what is causing this error?main.cpp: In function 'int main()':main.cpp:27:29: error: ISO C++ forbids variable length array months' [-Wla]string months[num_months];months is not an arraynum_months has not been initializednum_months is a variablenum_months is a constant

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What will be the value of arr[2], the third element in the vector, after this code executes?

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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