Amazon SDE 1 interview questions

Passed Online Assessment (OA). Advanced to a 30-minute phone interview that included a live coding component. During the interview, I was asked about Depth-First Search (DFS) and solved a “Number of Islands” problem, which required applying graph traversal concepts to identify and count connected components in a 2D grid. I explained my reasoning, chose DFS as the traversal strategy, and worked through the implementation while discussing time and space complexity. This round tested both my problem-solving approach and my ability to communicate technical thinking clearly under time constraints.