Amazon
5016 questions across 23 categories
Array
2755 questions
E 619M 1596H 540
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Hash Table
407 questions
E 103M 239H 65
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Two Pointers
112 questions
E 52M 46H 14
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Linked List
139 questions
E 26M 98H 15
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Depth-First Search
79 questions
E 4M 63H 12
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Math
396 questions
E 163M 171H 62
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Stack
37 questions
E 24M 13
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Tree
209 questions
E 71M 136H 2
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String
388 questions
E 85M 208H 95
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Dynamic Programming
82 questions
E 3M 44H 35
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Database
268 questions
E 154M 91H 23
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Binary Search
16 questions
E 10M 2H 4
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Divide and Conquer
9 questions
E 6M 3
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Graph Theory
11 questions
E 3M 5H 3
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Design
13 questions
E 7M 2H 4
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DSA / Coding
40 questions
E 34M 6
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Bit Manipulation
20 questions
E 12M 8
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Backtracking
18 questions
E 2M 10H 6
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Shell
3 questions
E 3
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Breadth-First Search
4 questions
M 4
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Trie
2 questions
H 2
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Greedy
2 questions
M 2
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Union-Find
6 questions
M 4H 2
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