LeetCode provides excellent practice, especially Medium-level problems. However, candidates should also focus on communication, complexity analysis, optimization techniques, and behavioral preparation based on Amazon's Leadership Principles.
DSA is one of the most important parts of Amazon's technical interview process. Candidates are expected to solve coding problems efficiently while explaining their thought process, trade-offs, and time-space complexity.
Arrays, Strings, Hash Maps, Sliding Window, Linked Lists, Trees, Binary Search Trees, Graphs, Heaps, Dynamic Programming, Backtracking, and Greedy Algorithms are among the most frequently tested topics.
Most Amazon coding questions are comparable to LeetCode Medium problems. However, candidates should also be prepared for a few Hard questions, especially for SDE-2 and experienced engineering roles.
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