code
Introduction
LC Note
Two Pointer
LC15.3 Sum
234. Palindrome Linked List
LC5.Longest Palindrome Substring
LC142 Linked List Cycle II
80.Remove Duplicates from Sorted Array II
LC16.3Sum Closest
lc125.Valid Palindrome
Search a 2D Matrix II
Partition Array by Odd and Even
Stack
LC20. Valid Parentheses
Implement Queue by Two Stacks
Implement Stack by Two Queues
Min Stack
Simplify Path
Hash
LC1. Two Sum
LC.138 Copy List with Random Pointer
lc448.Find All Numbers Disappeared in an Array
383.Ransom Note
Tree
SubTree
111 Minimum Depth of Tree
Binary Tree Preorder Traversal
98.Validate Binary Search Tree
Lowest Common Ancestor
113.Path Sum II
Binary Tree Level Sum
257.Binary Tree Paths
Binary Tree Inorder Traversal
Binary Tree Level Order Traversal
PRE ORDER TRAVERSE
Insert Node in a Binary Search Tree
LC108.Convert Sorted Array to Binary Search Tree
114.Flatten Binary Tree to Linked List
LCA3 Lintcode
ListNode
21.merge 2 sorted list
19.Remove Nth Node From End of List
Insert Node
LC206. Reverse Linked List
92.Reverse Linked List II
Copy ArrayList to LinkedList
LC82.Remove Duplicates from Sorted List II
Remove Duplicates from Unsorted List
Intersection of Two Linked Lists
Reverse Nodes in k-Group
Sliding Window
Window Sum
239.Sliding Window Max
Minimum Window Substring
LC118.Pascal's Triangle
LC119.Pascal's Triangle II
BackTracking
lc46.Permutations
lc78.Subsets
90.Subsets II
lc47.Permutations II
77.Combinations
40.Combination Sum II
216.Combination Sum III
Palindrome Partitioning
String
LC.8String to Integer (atoi)
415.Add Strings
LC168.Excel Sheet Column Title
Rotate String \/ Array
273.Integer to English Words
12.Integer to Roman
Two Strings Are Anagrams
Bit Manu
lc461.Hamming Distance
LC 9.Palindrome Nunmber
371.Sum of Two Integers
Power of 2
Math
463.Island Perimeter
223.Rectangel Area
Partition a set into two subsets such that the difference of subset sums is minimum
Prefix Sum - Interval Sum
Heap(PriorityQueue) \/ Queue
LC347.Top K Frequent Elements
Binary Search
LC278.First Bad Version
LC162.Find Peak Element
copy books
LC33 Search in Rotated Sorted Array
K Closest Numbers In Sorted Array
BFS
Clone Graph
Search Graph Nodes
Graph vaild Tree
Binary Tree Serialization
Couse Schedule I & II
Topological Sorting
Binary Tree Zigzag Level Order Traversal
Six Degrees
Word Ladder
Convert Binary Tree to Linked Lists by Depth
Binary Tree Zigzag Level Order Traversal
Zombie in Matrix
DFS
Clone Graph
Word Break II
Word Search
Word Break
Generate Parentheses
Comparator \/ K close***
Largest Number
Reorder array to construct min number
Greedy
Max Subarray
Max Subarray II
Best Time to Buy and Sell Stock
Best Time to Buy and Sell Stock II
Merge Sort
Merge Sorted Array
Merge Two Sorted Arrays
Median of two Sorted Arrays
Sort List
Quick Sort
Partition Array
Trie
Implement Trie
Add and Search Word
None LC_Note
Binary Search
Rotate Array
Remove Vowel
Greast Common Divisor
Search in 2D Matrix
Find K nearest Points
LRU miss count
HighFiveAvgForEachStudent
Rotate 2D Array
Min Path Sum
#Arithmetic Qequence
MaxMinPath(dfs)
close2Sum
4 Integer
Tree Amplitude
Remove duplicate in Array
Wood Cut from Lintcode
Gray Code
Amazon
Rectangle
Window Sum
Longest Palidrome string
K closest Points
High Five
MST(City Connection)
Company Tree
Order Dep
Copy List with Random Pointer
Reverse sec half list
Merge 2 sorted list
insert into cycled linked list
Compare Version Numbers
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