**Learning Objectives:**- **[Remember]** Students will recall how to read from standard input.- **[Apply]** Students will write loops that iterate as long as a condition is true.**Task:**Write a program that reads words from standard input and displays them to standard output. When the word "end" is read, print it out and then stop reading input.**Code Explanation:**Below is a simple C++ program framework provided to achieve the task:```cpp#include using namespace std;/* * Reads and displays words from standard input until hitting a stop word. */int main() { return 0;}```### Code Details:- **Line 1-2:** Includes the necessary C++ library `iostream` and uses the standard namespace (`std`). This allows access to standard input and output stream objects. - **Lines 4-7:** Contains a comment block describing the purpose of the program, which is to read and display words from standard input until a stop word is encountered.- **Line 9:** Declares the `main` function where the execution of the program begins. It currently lacks the implementation of reading from standard input.- **Line 11:** Returns 0 to indicate that the program executed successfully, although more code is needed for its functionality.**Additional Notes:**To complete this task, students need to add a loop and input reading mechanism within the `main` function. The goal is to continuously read inputs until "end" is encountered, which involves understanding loop constructs and conditional statements in C++. **Learning Objective (LO):** Apply loops to iterate over every value in a range.Some marathon organizers are advertising race distances using kilometers. Help them explain the races to participants unfamiliar with the metric system by printing a line for each race length that explains its approximate length in miles.The races are organized in increments of 5 km: 5 km, 10 km, and so forth, up to 40 km. There are approximately 0.621 miles in a kilometer. Miles should be rounded to the nearest whole number. Follow this format:**A 5km race is approximately 3 miles long.**---**Code Explanation:**```cpp#include using namespace std;/* * Displays how long each race is in kilometers and miles. */int main() { return 0;}```This code snippet is an initial setup in C++ for a program that will calculate and display the approximate length of various races in miles based on their kilometer measurement. The main function is currently empty, which means implementation code for the calculation needs to be added.

The below given C++ program will obey the following rubrics: Including necessary header files. In…

Answered: Write a program that reads words from…

Write a program that reads words from standard input and displays them to standard output. When the word "end" is read, print it out and then stop reading input.

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

Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.

Question

**Learning Objectives:**

- **[Remember]** Students will recall how to read from standard input.
- **[Apply]** Students will write loops that iterate as long as a condition is true.

**Task:**

Write a program that reads words from standard input and displays them to standard output. When the word "end" is read, print it out and then stop reading input.

**Code Explanation:**

Below is a simple C++ program framework provided to achieve the task:

```cpp
#include <iostream>
using namespace std;

/*
* Reads and displays words from standard input until hitting a stop word.
*/
int main() {

return 0;
}
```

### Code Details:

- **Line 1-2:** Includes the necessary C++ library `iostream` and uses the standard namespace (`std`). This allows access to standard input and output stream objects.

- **Lines 4-7:** Contains a comment block describing the purpose of the program, which is to read and display words from standard input until a stop word is encountered.

- **Line 9:** Declares the `main` function where the execution of the program begins. It currently lacks the implementation of reading from standard input.

- **Line 11:** Returns 0 to indicate that the program executed successfully, although more code is needed for its functionality.

**Additional Notes:**

To complete this task, students need to add a loop and input reading mechanism within the `main` function. The goal is to continuously read inputs until "end" is encountered, which involves understanding loop constructs and conditional statements in C++.

**Learning Objective (LO):** Apply loops to iterate over every value in a range.

Some marathon organizers are advertising race distances using kilometers. Help them explain the races to participants unfamiliar with the metric system by printing a line for each race length that explains its approximate length in miles.

The races are organized in increments of 5 km: 5 km, 10 km, and so forth, up to 40 km. There are approximately 0.621 miles in a kilometer. Miles should be rounded to the nearest whole number. Follow this format:

**A 5km race is approximately 3 miles long.**

---

**Code Explanation:**

```cpp
#include <iostream>
using namespace std;

/*
* Displays how long each race is in kilometers and miles.
*/

int main() {
return 0;
}
```

This code snippet is an initial setup in C++ for a program that will calculate and display the approximate length of various races in miles based on their kilometer measurement. The main function is currently empty, which means implementation code for the calculation needs to be added.

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