Amazon Software Development Engineer 1 Interview Experience
Software Development Engineer 1
Summary
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The Amazon interview process consisted of three rounds, featuring a mix of coding, behavioral, and system design questions. Candidates can expect technical questions related to Binary Search and Dynamic Programming in the first two rounds, followed by discussions on project experience and Leadership Principles in the final round. Overall, the interview experience at Amazon appears to be challenging and comprehensive, testing both technical and behavioral competencies.
1
Given a binary matrix, identify the row that has the maximum number of 1s. The initial approach involves applying binary search on every row with a time complexity of O(m log n). An optimized solution starts from the top-right corner of the matrix. If the current value is 1, move left; if 0, move down. Keep track of the row whenever moving left. The final time complexity is O(m + n) and space complexity is O(1).
Given a binary matrix, identify the row that has the maximum number of 1s. The initial approach involves applying binary search on every row with a time complexity of O(m log n). An optimized solution starts from the top-right corner of the matrix. If the current value is 1, move left; if 0, move down. Keep track of the row whenever moving left. The final time complexity is O(m + n) and space complexity is O(1).
binary-search
matrix-traversal
Medium
2
Determine the number of islands in a grid using the Disjoint Set Union (DSU) method. Initially treat every cell as water and progressively convert cells into land. Increase the island count as land cells are added and use union operations for adjacent land cells. The discussion includes implementation of DSU, union by rank/size, path compression, and various time and space complexities.
Determine the number of islands in a grid using the Disjoint Set Union (DSU) method. Initially treat every cell as water and progressively convert cells into land. Increase the island count as land cells are added and use union operations for adjacent land cells. The discussion includes implementation of DSU, union by rank/size, path compression, and various time and space complexities.
disjoint-set-union
dynamic-connectivity
Medium
3
binary-searchmatrix-traversalbinary-treesdynamic-programmingdisjoint-set-unionleadership-principlesamazon
A
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