1. read a character. 2. if you are not at end of file, then... a. Encode the character if it's a letter b. write the character to the output file c. read the next character. d. repeat step 2 ABCDEF G HIJKLM N OP Q RSTUVv W X Y Z NOPQ RSTU V W X Y Z A B CDEF GHI JKLM To write program 14, You will need to read from a file one character at a time. If the character is a letter, encode it. If it is not a letter do nothing. In either case write the character to the output file. Then repeat this until you reach the end of the input file.

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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Please use C++ code and only use the libraries <iostream> and <fstream>. 

Thank you!

## File Handling: ROT13

### Instructions:

1. **Read a character.**

2. **If you are not at the end of the file, then:**
   - a. **Encode the character if it's a letter.**
   - b. **Write the character to the output file.**
   - c. **Read the next character.**
   - d. **Repeat step 2.**

### ROT13 Encoding Diagram:

The diagram shows the ROT13 encoding scheme for the alphabet:

- **A B C D E F G H I J K L M**  
  (Original Alphabet)

- **N O P Q R S T U V W X Y Z**  
  (Encoded Alphabet)

In ROT13, each letter is shifted 13 places forward in the alphabet. If the end of the alphabet is reached, it wraps around to the beginning.

### Program 14 Instructions:

To write Program 14, you will need to read from a file one character at a time. If the character is a letter, encode it. If it is not a letter, do nothing. In either case, write the character to the output file. Then repeat this until you reach the end of the input file.
Transcribed Image Text:## File Handling: ROT13 ### Instructions: 1. **Read a character.** 2. **If you are not at the end of the file, then:** - a. **Encode the character if it's a letter.** - b. **Write the character to the output file.** - c. **Read the next character.** - d. **Repeat step 2.** ### ROT13 Encoding Diagram: The diagram shows the ROT13 encoding scheme for the alphabet: - **A B C D E F G H I J K L M** (Original Alphabet) - **N O P Q R S T U V W X Y Z** (Encoded Alphabet) In ROT13, each letter is shifted 13 places forward in the alphabet. If the end of the alphabet is reached, it wraps around to the beginning. ### Program 14 Instructions: To write Program 14, you will need to read from a file one character at a time. If the character is a letter, encode it. If it is not a letter, do nothing. In either case, write the character to the output file. Then repeat this until you reach the end of the input file.
**Exercise 14: File Handling with ROT13 Cipher**

Create a program using the file `files.cpp`. The aim is to read a file encoded with the "rot13" cipher, decode it, and save it. The resulting file should have the original file name with the word "coded" appended to it. 

**Instructions:**
1. Read the input file that is encoded using the ROT13 cipher.
2. Decode the content of the file.
3. Save the decoded content in a new file, naming it as the original file name plus "coded".

**Note:** ROT13 is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet.
Transcribed Image Text:**Exercise 14: File Handling with ROT13 Cipher** Create a program using the file `files.cpp`. The aim is to read a file encoded with the "rot13" cipher, decode it, and save it. The resulting file should have the original file name with the word "coded" appended to it. **Instructions:** 1. Read the input file that is encoded using the ROT13 cipher. 2. Decode the content of the file. 3. Save the decoded content in a new file, naming it as the original file name plus "coded". **Note:** ROT13 is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet.
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