Amazon

Good. Three questions. One was N-Queens, another was a medium-level DSA problem (Trapping Rain Water), and a DP question.

The interview experience was challenging, and I didn’t perform as well as I hoped. I struggled to communicate my thought process clearly under pressure, and a few data-structure and algorithm questions caught me off guard. I also rushed through parts

You need to study trees, BFS, DFS, and Collections. They will focus a lot on console applications. Many questions you will solve using an online compiler in front of them.