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Array
132
Dynamic Programming
108
String
104
Math
92
Hash Table
83
Tree
79
Depth-first Search
77
Binary Search
48
Two Pointers
43
Backtracking
37
Breadth-first Search
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Stack
35
Design
33
Greedy
33
Bit Manipulation
31
Linked List
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26
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19
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18
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15
Divide and Conquer
14
Trie
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13
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8
Binary Indexed Tree
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3
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2
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Google
267
Facebook
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Microsoft
96
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Uber
57
LinkedIn
52
Twitter
35
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30
Apple
30
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27
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21
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21
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15
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15
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14
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9
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9
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8
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databricks
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