I sent my resume through a friend who works for the company and was addressed by mail regarding it the very next day.

I was then asked by phone a few technical questions about my availability in the summer, the languages I prefer to code in, and more. A phone interview was set for two days later.

I was only asked one question, which due to language difficulties, I failed to answer quickly enough. The question was pretty easy and went like this:

You have an array of strings and a function that receives a string and returns whether it's good or bad. We know that starting at some entry, all strings in the array turn from good to bad. We want to find this entry at O(logn) time.