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Java访问权限 & 关键字

public/private/protected...

遇到一个Java/Python/C++/C 类问题_(:з」∠)_

xia xue xi

LinkedHashSet || HashSet

Compare LinkedHashSet and HashSet

LinkedHashSet || HashSet

Compare LinkedHashSet and HashSet

LC381.Insert Delete GetRandom O(1)

Insert Delete GetRandom O(1) - Duplicates allowed

LinkedHashSet || HashSet

Compare LinkedHashSet and HashSet

LC444. Sequence Reconstruction

Sequence Reconstruction

Leetcode - Course Schedule

Course Schedule - topologicalsort

LC127. Word Ladder

Word Ladder I - one of solution

LC216. Word Ladder II

Leetcode - Array Sum Problems

LC1, LC15, LC18, LC16, LC259, LC454

LC370. Range Addition

Leetcode - Stock Problems

Best Time to Buy and Sell Stock

Leetcode - Rotated Array

Find or Search in rotated array

LC57. Insert Interval

Insert interval with merge

LC84/85. Maximal Rectangle || Max rectangle in Histogram

Find maximal rectangle in matrix/array

LC123. Best Time to Buy and Sell Stock III

At most two transactions.

LC216. Word Ladder II

LC124. Binary Tree Maximum Path Sum

Binary Tree problems

LC97. Interleaving String

Find whether s3 is formed by the interleaving of s1 and s2.

LC439. Ternary Expression Parser

LC301. Remove Invalid Parentheses

LC302. Smallest Rectangle Enclosing Black Pixels

LC216. Word Ladder II

LC244. Shortest Word Distance II

Follow up of Shortest Word Distance.

LC128. Longest Consecutive Sequence

Given an unsorted array of integers, find the length of the longest consecutive elements sequence.

LC314. Binary Tree Vertical Order Traversal

Left to right vertically traversal.

Leetcode - Single Number I/II/III

Single Number I/II/III

LC216. Word Ladder II

一些资源

Some Links

LC432. All O`one Data Structure

Design a all O(1) time data structure

LC244. Shortest Word Distance II

Follow up of Shortest Word Distance.

LC170. Two Sum III - Data structure design

LC - LRU/LFU Cache

LC146, LC460

Leetcode Read N Characters Given Read4 I/II

LC157, LC158

LC381.Insert Delete GetRandom O(1)

Insert Delete GetRandom O(1) - Duplicates allowed

Job Interview for International Applications

Some suggestions for job interview

Leetcode - Word Break

LC139, LC140, LC343

Leetcode - Unique BST

LC95，LC96

Leetcode - Ugly Number

LC263, LC264, LC313

Leetcode - Special Pattern

LC351, LC651, LC688, LC935

Leetcode - Minimum Cost

LC322, LC983, LC1105, LC1155, LC1130

Leetcode - Math Related

LC813, LC837, LC1058

Leetcode - Longest Subsequence

LC300, LC376, LC673, LC516, LC1027, LC873, LC368, LC842, LC960

Leetcode - Longest Subarray and Substring

LC718, LC647

Leetcode - House Robber / Subarray Product

LC198, LC213, LC337, LC740, LC152, LC713

Leetcode - Dominoes

LC833,

Leetcode - Buy and Sell Stock

LC121, LC122, LC123, LC188, LC309, LC714

LC刷题自我检讨

自我检讨

Leetcode - Arithmetic Slices

LC413, LC446

LC466. Count The Repetitions

A difficult DP problem

Leetcode - Paint House

LC256, LC265

LC410. Split Array Largest Sum

LC403. Frog Jump

LC97. Interleaving String

Find whether s3 is formed by the interleaving of s1 and s2.

LC87. Scramble String

LC464. Can I Win

LC32. Longest Valid Parentheses

LC174. Dungeon Game

LC115. Distinct Subsequences

LC474. Ones and Zeroes

Building strings using existed ones.

LC471. Encode String with Shortest Length

Encode the string such that its encoded length is the shortest.

LC44. Wildcard Matching

Implement wildcard pattern matching with support for '?' and '*'.

LC363. Max Sum of Rectangle No Larger Than K

Find the max sum of a rectangle in the matrix such that its sum is no larger than k.

LC354. Russian Doll Envelopes

LC321. Create Maximum Number

Find max k numbers in two array.

LC312. Burst Balloons

LC10. Regular Expression Matching

Implement regular expression matching with support for '.' and '*'.

LC300. Longest Increasing Subsequence

not necessarily continuous

Leetcode - Stock Problems

Best Time to Buy and Sell Stock

LC84/85. Maximal Rectangle || Max rectangle in Histogram

Find maximal rectangle in matrix/array

LC123. Best Time to Buy and Sell Stock III

At most two transactions.

LC32. Longest Valid Parentheses

LC174. Dungeon Game

LC255. Verify Preorder Sequence in Binary Search Tree

Giving preorder array of a BST

Leetcode - Closest Binary Search Tree Value I/II

LC270, LC272

LC316. Remove Duplicate Letters

LC224. Basic Calculator

+, -, (, )

LC84/85. Maximal Rectangle || Max rectangle in Histogram

Find maximal rectangle in matrix/array

遇到一个Java/Python/C++/C 类问题_(:з」∠)_

xia xue xi

Using Database with Python Week3

Datebase design

Using Database with Python Week1

Object Oriented Python

Using Database with Python Week4／5

Many-to-Many Relationships in SQL & Visualization

Using Database with Python Week3

Datebase design

Using Database with Python Week2

Relational Databases and SQLite

Using Database with Python Week1

Object Oriented Python

LC刷题自我检讨

自我检讨

LC410. Split Array Largest Sum

LC475. Heaters

LC363. Max Sum of Rectangle No Larger Than K

Find the max sum of a rectangle in the matrix such that its sum is no larger than k.

LC354. Russian Doll Envelopes

LC302. Smallest Rectangle Enclosing Black Pixels

LC300. Longest Increasing Subsequence

not necessarily continuous

Leetcode - Rotated Array

Find or Search in rotated array

LC57. Insert Interval

Insert interval with merge

LC57. Insert Interval

Insert interval with merge

Leetcode - Segment Tree/ Binary Index Tree

LC315, LC308, LC307, LC218

Segment Tree || Binarty Index Tree

线段树和树状数组

Leetcode - Segment Tree/ Binary Index Tree

LC315, LC308, LC307, LC218

Segment Tree || Binarty Index Tree

线段树和树状数组

LC444. Sequence Reconstruction

Sequence Reconstruction

Leetcode - Course Schedule

Course Schedule - topologicalsort

LC464. Can I Win

Leetcode - Single Number I/II/III

Single Number I/II/III

LC99. Recover Binary Search Tree

Recursion VS. Morris traversal

LC333. Largest BST Subtree

LC255. Verify Preorder Sequence in Binary Search Tree

Giving preorder array of a BST

Leetcode - Closest Binary Search Tree Value I/II

LC270, LC272

Leetcode - Binary Search Tree

LC220, LC315, LC327, LC352

Leetcode - Binary Search Tree

LC220, LC315, LC327, LC352

Leetcode - Binary Search Tree

LC220, LC315, LC327, LC352

Leetcode - Word Square

LC422, LC425

Leetcode - Trie Medium

LC421, LC208, LC211

Leetcode - Trie Hard

LC212, LC336, LC425, LC472

LC471. Encode String with Shortest Length

Encode the string such that its encoded length is the shortest.

LC44. Wildcard Matching

Implement wildcard pattern matching with support for '?' and '*'.

LC214. Shortest Palindrome

Convert string to shortest palindrome.

LC10. Regular Expression Matching

Implement regular expression matching with support for '.' and '*'.

Leetcode - Trie Hard

LC212, LC336, LC425, LC472

LC23. Merge k Sorted Lists

Merge k Sorted Lists

LC471. Encode String with Shortest Length

Encode the string such that its encoded length is the shortest.

LC214. Shortest Palindrome

Convert string to shortest palindrome.

KMP ?_?

KMP 个人理解

Leetcode - Path Sum problems

LC112, LC113, LC437

Leetcode - Divide and Conquer Medium

LC53, LC240, LC241, LC215

Leetcode - Divide and Conquer Hard

LC4, LC23, LC218, LC282, LC312, LC315, LC327

Divide and Conquer

D&C 个人理解

LC312. Burst Balloons

Leetcode - Merge Intervals

LC刷题自我检讨

自我检讨

LC330. Patching Array

LC296. Best Meeting Point

2D finding min distance

LC469. Convex Polygon

Decide a convex polygon

LC330. Patching Array

Leetcode - Strobogrammatic Number

LC246, LC247, LC248

Leetcode - Permutation problems

LC31, LC46, LC47, LC60, LC266, LC267

Leetcode - NQueens Problems

LC51, LC52

LC37. Sudoku Solver

Solve a Sudoku puzzle

LC291. Word Pattern II

Given a pattern and a string str, find if str follows the same pattern.

LC254. Factor Combinations

Print all possible factors

Leetcode - Word Square

LC422, LC425

LC44. Wildcard Matching

Implement wildcard pattern matching with support for '?' and '*'.

Tree Traversal

Preorder, Inorder, Postorder

LC刷题自我检讨

自我检讨

Leetcode - Populating Next Right Pointers in Each Node

LC116， LC117

LC250. Count Univalue Subtrees

LC145. Binary Tree Postorder Traversal

LC124. Binary Tree Maximum Path Sum

Binary Tree problems

Leetcode - Path Sum problems

LC112, LC113, LC437

LC236. Lowest Common Ancestor of a Binary Tree

LCA of two given nodes in the tree.

LC156. Binary Tree Upside Down

Reverse a binary tree

Leetcode - Closest Binary Search Tree Value I/II

LC270, LC272

LC刷题自我检讨

自我检讨

Leetcode - Union Find

LC305, LC261, LC323

Leetcode - Array Sum Problems

LC1, LC15, LC18, LC16, LC259, LC454

遇到一个Java/Python/C++/C 类问题_(:з」∠)_

xia xue xi

遇到一个Java/Python/C++/C 类问题_(:з」∠)_

xia xue xi

HTML, CSS, and Javascript for Web Developers Week5

HTML, CSS, and Javascript for Web Developers Week4

HTML, CSS, and Javascript for Web Developers Week3

HTML, CSS, and Javascript for Web Developers Week2

Cascading Style Sheets Basics

HTML, CSS, and Javascript for Web Developers Week1

Basics and environment setup.

Leetcode Wiggle Sort

LC215 Kth Largest Element in an Array

Leetcode H-Index

LC刷题自我检讨

自我检讨

LC296. Best Meeting Point

2D finding min distance

LC164. Maximum Gap

O(n) sort

Algorithm Part II Week1

Undirected Grapth & Directed Graph

Distributed System XII

15640 DS12 - Security

Distributed System XI

15640 DS11 - Byzantine Fault Tolerance

Distributed System X

15640 DS10 - Virtualization

Distributed System IX

15640 DS9 - Hashing & P2P/Blockchains

Distributed System VIII

15640 DS8 - GFS/HDFS/Spanner

Distributed System VII

15640 DS7 - Popular Systems

Distributed System VI

15640 DS6 - DNS/CDN & Naming

Distributed System V

15640 DS5 - Fault Tolerance

Distributed System IV

15640 DS4 - Distributed Mutex & Concurrency

Distributed System III

15640 DS3 - Distributed File System

Distributed System II

15640 DS2 - Communication & RPC

Distributed System I

15640 DS1 - Classical Synchronization & Concurrency

Distributed System 〇

15640 DS0 - General

Deep Learning I

11785 DL1 - NN Training & Optimization

Deep Learning 〇

11785 DL0 - General

Parallel Architecture & Programing X

15618 PP10 Implementing Message Passing

Parallel Architecture & Programing VIIII

15618 PP9 Transactional Memory

Parallel Architecture & Programing VIII

15618 PP8 Synchronization Implementing

Parallel Architecture & Programing VII

15618 PP7 Interconnerection Networks

Parallel Architecture & Programing VI

15618 PP6 Cache Coherence

Parallel Architecture & Programing V

15618 PP5 Performance Evaluation

Parallel Architecture & Programing IV

15618 PP4 - GPU & CUDA

Parallel Architecture & Programing III

15618 PP3 - Parallel Performance and Optimization

Parallel Architecture & Programing II

15618 PP2 - Parallel Programing Basics

Parallel Architecture & Programing I

15618 PP1 - Basic & HW/SW Implementation

Parallel Architecture & Programing 〇

15618 PP0 - General

SVM

Liner Regression & Logistic Regression

LR, GD, SGD

KNN

Overfitting, Underfitting, Bias, Variance

Text Classification Notes

我到底在工作个啥。。。

Machine Learning Yearning Notes

看来不是瞎拍脑袋调

LC刷题自我检讨

自我检讨

Leetcode - Win the Game

LC292, LC293, LC294, LC464, LC375, LC486, LC877, LC1140

LC刷题自我检讨

自我检讨

Leetcode - Ugly Number

LC263, LC264, LC313