ne method that can be used to compress text data is run length encoding (RLE). When RLE is used the compressed data can be represented as a set of character/frequency pairs. When the same character appears in consecutive locations in the original text it is replaced in the compressed text by a single instance of the character followed by a number indicating the number of consecutive instances of that character. Single instances of a character are represented by the character followed by the number 1. Figure 9 and Figure 10 show examples of how text would be compressed using this method. Figure 9 Original text: AAARRRRGGGHH Compressed text: A 3 R 4 G 3 H 2 Figure 10 Original text: CUTLASSES Compressed text: C 1 U 1 T 1 L 1 A 1 S 2 E 1 S 1 What you need to do Task 1 Write a Python program that will perform the compression process described above. The program should display a suitable prompt asking the user to input the text to compress and then output the compressed text. Task 2 Test the program works by entering the text AAARRRRGGGHH

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
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One method that can be used to compress text data is run length encoding (RLE). When RLE is used the compressed data can be represented as a set of character/frequency pairs. When the same character appears in consecutive locations in the original text it is replaced in the compressed text by a single instance of the character followed by a number indicating the number of consecutive instances of that character. Single instances of a character are represented by the character followed by the number 1.

Figure 9 and Figure 10 show examples of how text would be compressed using this method.

Figure 9

Original text: AAARRRRGGGHH

Compressed text: A 3 R 4 G 3 H 2

Figure 10

Original text: CUTLASSES

Compressed text: C 1 U 1 T 1 L 1 A 1 S 2 E 1 S 1

What you need to do

Task 1

Write a Python program that will perform the compression process described above. The program should display a suitable prompt asking the user to input the text to compress and then output the compressed text.

Task 2

Test the program works by entering the text AAARRRRGGGHH.

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