algorithms-summary
!Great Resources
Basic Concepts
HTTP
Computer Foundations
Operating System
OOD
Java
Heap and Stack memory
Memory and GC
Pass By Value
Final finally finalize
Override and Overload
Interface vs abstract class
IS-A and HAS-A
static
exception
[Java's Data structure](java's-data-structure.md)
stack overflow
Handle big file
functional programming vs object oriented programming
String
345 Reverse Vowels of a String
28 Implement strStr()
459 Repeated Substring Pattern
344 Reverse String
!151 Reverse Words in a String
482 License Key Formatting
293 Flip Game
294 Flip Game II
161 One Edit Distance
468 Validate IP Address
158 Read N Characters Given Read4 II - Call multiple times
14 Longest Common Prefix
415 Add Strings
43 Multiply Strings
Integer Array
280 Wiggle Sort
54 Spiral Matrix
26 Remove Duplicates from Sorted Array
27 Remove Element
283 Move Zeroes
189 Rotate Array
163 Missing Ranges
289 Game of Life
157, 158 Read N Characters Given Read4
66 Plus One
Binary Search
Copy Books
378 Kth Smallest Element in a Sorted Matrix
153 Find Minimum in Rotated Sorted Array
287 Find the Duplicate Number
300 Longest Increasing Subsequence
69 Sqrt(x)
Search in a Big Sorted Array
Wood Cut
162 Find Peak Element
33 Search in Rotated Sorted Array
274 H-Index
392 Is Subsequence
Math
172 Factorial Trailing Zeroes
326 Power of Three
263 Ugly Number
50 Pow(x, n)
8 String to Integer (atoi)
69 Sqrt(x)
7 Reverse Integer
171 Excel Sheet Column Number
13 Roman to Integer
Bit Manipulation
!400 Nth Digit
461 Hamming Distance
191 Number of 1 Bits
136 137 260 Single Number
231 Power of Two
Update Bits
!268 Missing Number
342 Power of Four
190 Reverse Bits
89 Gray Code
Greedy
55 Jump Game
45 Jump Game II
LinkedList
86 Partition List
109 Convert Sorted List to Binary Search Tree
!138 Copy List with Random Pointer
2 Add Two Numbers
445 Add Two Numbers II
Binary Tree
DFS - Pre-order, In-order, Post-order Traversal
BFS - Level Order Traversal
104 Maximum Depth of Binary Tree
257 Binary Tree Paths
Minimum Subtree
110 Balanced Binary Tree
Subtree with Maximum Average
114 Flatten Binary Tree to Linked List
236 Lowest Common Ancestor of a Binary Tree
112 Path Sum I, II, III
298 Binary Tree Longest Consecutive Sequence
98 Validate Binary Search Tree
333 Largest BST Subtree
450 Delete Node in a BST
297 Serialize and Deserialize Binary Tree
449 Serialize and Deserialize BST
101 Symmetric Tree
!99 Recover Binary Search Tree
337 House Robber III
270 Closest Binary Search Tree Value
501 Find Mode in Binary Search Tree
222 Count Complete Tree Nodes
308 Range Sum Query 2D - Mutable Add to List
307 Range Sum Query - Mutable
116 Populating Next Right Pointers in Each Node
BackTracking
78 Subsets
90 Subsets II
46 Permutations
47 Permutations II
39 Combination Sum
40 Combination Sum II
216 Combination Sum III
77 Combinations
!60 Permutation Sequence
31 Next Permutation
294 Flip Game II
401 Binary Watch
17 Letter Combinations of a Phone Number
79 Word Search
291 Word Pattern II
!22 Generate Parentheses
254 Factor Combinations
93 Restore IP Addresses
Dynamic Programming
276 Paint Fence
322 Coin Change
300 Longest Increasing Subsequence
64 Minimum Path Sum
Backpack I - VI
377 Combination Sum IV
279 Perfect Squares
44 Wildcard Matching
139, 140 Word Break
91 Decode Ways
120 Triangle
516 Longest Palindromic Subsequence
303 Range Sum Query - Immutable
96 Unique Binary Search Trees
494 Target Sum
Data Structure
Stack
388 Longest Absolute File Path
155 Min Stack
!394 Decode String
224. Basic Calculator && Expression Evaluation
150 Evaluate Reverse Polish Notation
496 Next Greater Element I
503 Next Greater Element II
Queue
346 Moving Average from Data Stream
264 Ugly Number II
253 Meeting Rooms II
Hash Table
288 Unique Word Abbreviation
246 Strobogrammatic Number
359 Logger Rate Limiter
36 Valid Sudoku
380 Insert Delete GetRandom O(1).md)
149 Max Points on a Line
409 Longest Palindrome
340 Longest Substring with At Most K Distinct Characters
Heap
378 Kth Smallest Element in a Sorted Matrix
373 Find K Pairs with Smallest Sums
295 Find Median from Data Stream
23 Merge k Sorted Lists
239 Sliding Window Maximum
TreeSet & TreeMap
347 Top K Frequent Elements
Graph
279 Perfect Squares
133 Clone Graph
207 Course Schedule
261 Graph Valid Tree
Topological Sorting
127 Word Ladder
BFS & DFS
200 Number of Islands
286 Walls and Gates
329. Longest Increasing Path in a Matrix
317 Shortest Distance from All Buildings
Trie
211 Add and Search Word - Data structure design
212 Word Search II
Sort
252 Meeting Rooms
56 Merge Intervals
Merge Sort
Quick Sort
Design
281 Zigzag Iterator
284 Peeking Iterator
146 LRU Cache
362 Design Hit Counter
341 Flatten Nested List Iterator
432 All O`one Data Structure
379 Design Phone Directory
Amazon
Google
OA
Phone Interview
onsite
Facebook
Airbnb
Paypal
GlassDoor
Behavior
Two Sigma
OA
Uber
Bloomberg
onsite
Jet
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GitBook
Integer Array
Integer Array
negatives, 0, positives
duplicates
sorted / unsorted
Integer.MAX_VALUE vs Integer.MIN_VALUE => int or long
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