public/subjects/alphamirror.en.md

alphamirror

Instructions

Write a program called alphamirror that takes a string as argument and displays this string after replacing each alphabetical character with the opposite alphabetical character.

The case of the letter stays the same, for example :

'a' becomes 'z', 'Z' becomes 'A' 'd' becomes 'w', 'M' becomes 'N'

The final result will be followed by a newline ('\n').

If the number of arguments is different from 1, the program displays only a newline ('\n').

Usage:

student@ubuntu:~/[[ROOT]]/alphamirror$ go build
student@ubuntu:~/[[ROOT]]/alphamirror$ ./alphamirror "abc"
zyx
student@ubuntu:~/[[ROOT]]/alphamirror$ ./alphamirror "My horse is Amazing." | cat -e
Nb slihv rh Znzarmt.$
student@ubuntu:~/[[ROOT]]/alphamirror$ ./alphamirror | cat -e
$
student@ubuntu:~/[[ROOT]]/alphamirror$