We can dynamically resize vectors so that they may grow and shrink. While this is very convenient, it is inefficient. It is best to know the number of elements that you need for your vector when you create it. However, you might come across a situation someday where you do not know the number of elements in advance and need to implement a dynamic vector.Rewrite the following program so that the user can enter any number of purchases, instead of just 10 purchases. Output the total of all purchases. Hint: us do while loop with your vector..#include <vector>#include <iostream> using namespace std; int main(){ vector<double> purchases(10); for (int i = 0; i < 10; i++) { cout << "Enter a purchase amount"; cin >> purchases[i]; } return (0);}

Program: //include the header files #include <vector> #include <iostream> using…

Answered: We can dynamically resize vectors so…

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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We can dynamically resize vectors so that they may grow and shrink. While this is very convenient, it is inefficient. It is best to know the number of elements that you need for your vector when you create it. However, you might come across a situation someday where you do not know the number of elements in advance and need to implement a dynamic vector.

Rewrite the following program so that the user can enter any number of purchases, instead of just 10 purchases. Output the total of all purchases. Hint: us do while loop with your vector..

#include <vector>

#include <iostream>

using namespace std;

int main()

{

vector<double> purchases(10);

for (int i = 0; i < 10; i++)

{

cout << "Enter a purchase amount";

cin >> purchases[i];

}

return (0);

}

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