Codility test - 3 questions

First technical interview - introduce yourself, projects from university. 4 technical questions

Second technical interview - introduce yourself, projects from university. 1 technical question.

Second interviewer told me that I solved the question right, and that I solved it in a good time. HR contacted me to tell me that everything seems okay, they asked me for salary expectations (I asked for average or a little lower), and they asked me for two recommendation letters, which I gave them. Few days after, they contacted me to tell me that they signed another applicant!!!

Reverse a singly linked list.