Added documentation

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Claudio Maggioni (maggicl) 2019-07-26 00:11:15 +02:00
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# sys_prog
System Programming exercises / homeworks.
## Description
[Rickroll](https://www.youtube.com/watch?v=9KxTcDsy9Gs)

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# sortlines
Write a program called sortlines that reads one line at a time from the
standard input, and outputs the sequence of words in each line sorted in
lexicographical order. A word is a (maximal) contiguous sequence of alphabetic
characters as defined by the isalpha library function. The output sequence for
each line should be printed on a single line with each word separated by one
space. An input line is guaranteed to be at most 1000 characters.