Intel Corporation Software Engineer interview questions

Met a recruiter in my university career fair and got a call back on the very next day. Scheduled my interview after a week. The position was based in Oregon and I was interviewed by a senior person from the team. It was a 50 minutes skype interview. Started off with basic questions about resume, project, discussed skill set and he quickly moved on to coding questions. Everything was pretty simple but I felt that the interviewer wasn't open to many solutions. He just had a solution in mind and wouldn't let me proceed until I reach there.(though there wasn't a major difference between the two approaches) 1) Free a BST. 2) Implement atoi 3) Logical question followed by code to the same. Find the trialing number of 0s in 106! 4) This was an interesting puzzle which he wanted me to work on and share my results. I did a little bit of work on it and got back to him the next day for which he said that he liked the solution and suggested a simpler solution. Since then, I've been following up with him every week and there has been no response. Come on he could at least tell me that I am not good enough!! Really disappointed and gave up. Been a month now.