Amazon Non SDE intern interview questions

It was with two medium level DSA questions in 60 mins. I answered both the questions with an example walk thru. I also explained code line by line. But still I got rejected.

we got job application link through our campus placement, first round- online assessment(programming-dsa , behaviour analysis) 2nd round- interview(problem solving - DSA , 1 hour) 2 DSA questions(graphs,arrays) and some followup questions were asked for code.