Amazon Interview Experience | (Off-Campus 2020 for Programmer Analyst)

I had applied to Amazon Hyderabad off-campus for a Programmer Analyst role. The first round was conducted on HackerEarth. 

First Round – I don’t remember those questions, but there were one easy, one medium and one last one related to Oops concept implementation. All rounds from second to fourth are conducted on Amazon Chime. 

Second round – 1. infix-to-prefix-conversion-using-two-stacks 2. nth-node-from-the-end-of-a-linked-list 3. swap-kth-node-from-beginning-with-kth-node-from-end-in-a-linked-list

Third round – In this round, only 2 problems were asked:- 1. Remove unnecessary brackets from expression ex: input (a+b)+((c+d)) and output should be (a+b)+(c+d). 2. Find the longest sub string length, which is in alphabetical order. ex: input “cfaxy” and the output should be 3(axy). The interviewer was expecting code without any bugs, so be careful. 

Fourth round – 1. Interviewer asked me about my projects. 2. Behavioral question- tell me about any situation where you completed your task despite a lack of information. 3. Find a missing number in range of 1 to n. 4. Gave me a code snippet and asked me to find the error. For every coding question, I was asked about time and space complexity too.