Amazon Software Development Engineer II interview questions

I attended the interview in amazon development centre in Irvine, CA Consist of a telephonic Interview and an Onsite. Telephonic interview involved coding in Collab Edit and few data structures and OO questions. Telephonic interview questions : 1.Sort an array of string so that the anagrams are next to each other(coding question) 2.How to implement a file system( Just an idea) 3. basic OO questions Onsite: 1. Implement Poker game 2. Implement three stacks using single array. 3. Lunch Interview 4. Another bar raiser interview from seattle( Some binary Tree question) 5. HR - more than an hour. About previous accomplishments, strength , weakness, challenges, Problems etc. Prepare for this round with good examples

One of the the more unpleasant interview experiences of my life. Interviewers were cold and unwilling to share any information beyond their "portfolio of question". Their "coding quiz" (which, in concept, is quite reasonable) asked some of the most bizarre questions, much of what I believe had little to do with "real life" applications - they were more attuned to a sophomore or junior-level undergrad, and, quite frankly, were a poor barometer to ascertain one's skill as a software engineer. I was, and still am, left puzzled as to how these folks make intelligent decisions on whom to hire - I believe they're turning away (and turning off) many highly talented people.