A server application pulled off some sort of listings as table. Problem was, it crashed with some thousand data files after one and a half hours. I looked into that, and couldn't stop WTFing.

A stupid server side script fetched the data in XML (WTF!) and then inserted shit node-wise (WTF!!), which was O(n^2) - in PHP and on XML! Then it converted the whole shebang into HTML for browser display although users would finally copy/paste the result into Excel anyway.

The original developer even had written a note on the application page that pulling the data "could take long". Yeah because it's so fucking STUPID that Clippy is an Einstein in comparison, that's why!

So I pulled the raw data via batch file without XML wrapping and wrote a little C program for merging the dumped stuff client-side in O(n), spitting out a final CSV for Excel import.

Instead of fucking the server for 1.5 hours and then crashing, shit is done after 7 seconds, out of which the actual data processing takes 40 bloody milliseconds!