lander/README.md

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# Lander
## The idea
A URL shortener has always been on my list of things I'd like to write myself.
It's simple, yet useful.
for our Algorithms & Datastructures 3 class, we had to implement three
different tries (Patricia trie, ternary trie, and a custom one). Considering
these are efficient string-based search trees, this gave me the idea to use it
as the backend for a URL shortener!
This implementation currently uses a ternary trie as its search tree. The
persistence model is very simple; I simply append a line to a text file every
time a URL is added, and add the lines of this file to the trie on startup. The
trie is stored completely im memory, and no I/O operations are required when
requesting a redirect. This makes the server very fast.
## The name
I gave up giving my projects original names a long time ago, so now I just use
the names of my friends ;p