LeetCode
Introduction
Solution Template
Two Pointers
strStr
Backtracking
Subsets
SubsetsII
Knowledge Base
Backtracking, Recursion, and Dynamic Programming
Java
Spark
Java 8
Interview
Resources
DIDI
Phone Interviews
LRU Cache
Implementing Queue using Array
AQR OA
Restore IP Address
Google
OfferUp
GoldmanSachs
Amazon
Binary Search
Find Minimum in Rotated Sorted Array
Search in Rotated Sorted Array
Binary Tree
Binary Tree Inorder Traversal
Binary Tree Preorder Traversal
Binary Tree Postorder Traversal
Balanced Binary Tree
Lowest Common Ancestor of a Binary Tree
Inorder Successor in BST
Sorting
Merge Sort
Array
Third Maximum Number
Second Uniquely Larges Number
Heap
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Java 8
Collection.stream and Array.stream(nums)
PriorityQueue<>( (a,b) -> (a.value - b.value)) for map.entrySet()
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