Amazon

4 Rounds. Each round has 1 coding and 2 Leadership principles. First round has LLD and 2 LP. Second round: 1 LeetCode, 2 LP. Third round: HLD, 2 LP. Bar Raiser: 1 LLD and 2 LP.

Data Structures * HashMaps / Dictionaries: insertion, deletion, lookup, counting frequencies. * Arrays & Strings: sliding window, two pointers, prefix sums. * Linked Lists, Trees, Graphs basics if asked. Algorithms * Sorting and searching. * Hash-

The online assessment is well-structured and tests both algorithmic problem-solving and system design knowledge. Coding problems are clear, with a mix of data structures, algorithms, and occasionally a bit of optimization. The system design questio