The interviewer was very rude and condescending. Without any introduction, he asked me to open a browser and type the CollabEdit link, which he read out. After he finished describing the coding problem, I tried to have a conversation with him about different approaches. Whenever I asked him for his opinion on an approach, he simply responded with: 'What do YOU think?'

After several back-and-forths, I realized he had no wish to talk to me at all, so I started sketching and trying to solve the problem on paper. There were about TEN SILENT minutes without anyone speaking.

I solved the problem and described it to him. During the entire time, he didn't make a sound. That was it. This was my very first tech phone interview, and it was a disaster.

Wildcard matching