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898 B
898 B
repeatalpha
Instructions
Write a program called repeat_alpha that takes a string and display it repeating each alphabetical character as many times as its alphabetical index, followed by a newline.
'a' becomes 'a', 'b' becomes 'bb', 'e' becomes 'eeeee', etc...
Case remains unchanged.
If the number of arguments is not 1, just display a newline.
Examples:
student@ubuntu:~/student/repeatalpha$ go build
student@ubuntu:~/student/repeatalpha$ ./repeatalpha "abc" | cat -e
abbccc
student@ubuntu:~/student/repeatalpha$ ./repeatalpha "Alex." | cat -e
Alllllllllllleeeeexxxxxxxxxxxxxxxxxxxxxxxx.$
student@ubuntu:~/student/repeatalpha$ ./repeatalpha "abacadaba 42!" | cat -e
abbacccaddddabba 42!$
student@ubuntu:~/student/repeatalpha$ ./repeatalpha | cat -e
$
student@ubuntu:~/student/repeatalpha$ ./repeatalpha "" | cat -e
$
student@ubuntu:~/student/repeatalpha$