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1. Write a function called hw4_problem1 that takes a char vector txt as input and returns another char vector coded as output. The function reverses the alphabet: It replaces each 'a' with 'z', each 'b' with 'y', each 'c' with 'x', etc. The function must work for uppercase letters the same way, but it must not change any other characters. Note that if you call the function twice like this str = hw4_problem1 (hw4_problem1 (txt)) then str and txt will be identical.

1. Write a function called hw4_problem1 that takes a char vector txt as input and returns another char vector coded as output. The function reverses the alphabet: It replaces each 'a' with 'z', each 'b' with 'y', each 'c' with 'x', etc. The function must work for uppercase letters the same way, but it must not change any other characters. Note that if you call the function twice like this str = hw4_problem1 (hw4_problem1 (txt)) then str and txt will be identical.

Database System Concepts
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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1. Write a function called `hw4_problem1` that takes a char vector `txt` as input and returns another char vector `coded` as output. The function reverses the alphabet: It replaces each 'a' with 'z', each 'b' with 'y', each 'c' with 'x', etc. The function must work for uppercase letters the same way, but it must not change any other characters. Note that if you call the function twice like this `str = hw4_problem1(hw4_problem1(txt))` then `str` and `txt` will be identical.
Transcribed Image Text:1. Write a function called `hw4_problem1` that takes a char vector `txt` as input and returns another char vector `coded` as output. The function reverses the alphabet: It replaces each 'a' with 'z', each 'b' with 'y', each 'c' with 'x', etc. The function must work for uppercase letters the same way, but it must not change any other characters. Note that if you call the function twice like this `str = hw4_problem1(hw4_problem1(txt))` then `str` and `txt` will be identical.
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