I recently give an online assesment at amazon at the position of SDE-1 there were 2 questions in which i am able to solve the one question completely and in 2 second question i am not able to pass last 3 test cases with in under 30 minute they send me the rejection mail but i have seen people like me with same situation and there application is shortlisted for interviews does it happens to anyone and what is the cool down period for it?