Pickyourtrail Software Development Engineer interview questions

The interview was dead easy. First round -------------- 1. They gave me 3 programming questions and asked me to write code in a paper for all of them. I used Java programming language. I have mentioned the questions down here. 2. I gave efficient solutions for all the three in terms of TC and space complexity etc.. Basically for all those questions, you cannot optimize further. 3. Then they were discussing about the first round in a meeting room which was near me and I was able to overhear what they were discussing. 4. They were like, since this guy is from Amazon, they could not meet the salary requirements and hence they finalized to reject me. Seriously WHAT? 5. She came out and said I was rejected and she asked me to leave. I asked for the feedback and then she went inside and asked some dev (I came to know that, now only they were actually validating/looking at the paper where I wrote code). 6. Seriously Why would you do that? If salary is the problem, why the hell would you ask me to attend the interview. 7. I seriously don't want to write the questions they asked for the way they behaved(see point no. 4). Still, It might be helpful for future candidates who prepare for other companies other than PickYourTrail. 8. One Word - PICK YOUR TRAIL IS VERY BAD! Do not join. Also, The culture is very bad. As I was awaiting result of 1st round, Some guy working there was shouting at his direct reportee for some mistake in front of everyone. Self doubt I am having now -> What? Seriously Did I attend interview in an IT company?