Books for Algorithms

• Algorithm Design - organized and written in a clear, understandable language. Each chapter is backed with practical examples and helpful exercises. The chapter on network flow is highly praised by lots. ... The lecture slides that accompany the textbook are available on its [official website](http://www.cs.princeton.edu/~wayne/kleinberg-tardos/). |
• The Algorithm Design Manual
• Algorithms
• Algorithms and Data Structures in Action - chapter focusing on how to apply algorithms to real-world use cases that can be found in your daily work, or in competitive programming; it also presents a blend of classic, advanced, and new algorithms. |
• Algorithms - published textbook licensed under CC by 4.0. This is a well written book from lecture notes of theoretical computer science courses at the University of Illinois. Covers the main paradigms of backtracking, dynamic programming, greedy, and particularly graphs in depth. |
• Algorithm Design - organized and written in a clear, understandable language. Each chapter is backed with practical examples and helpful exercises. The chapter on network flow is highly praised by lots. ... The lecture slides that accompany the textbook are available on its [official website](http://www.cs.princeton.edu/~wayne/kleinberg-tardos/). |
• Grokking Data Structures
• Introduction to Algorithms
• Algorithm Design - organized and written in a clear, understandable language. Each chapter is backed with practical examples and helpful exercises. The chapter on network flow is highly praised by lots. ... The lecture slides that accompany the textbook are available on its [official website](http://www.cs.princeton.edu/~wayne/kleinberg-tardos/). |

Books for Mathematics

• Discrete Mathematics and Its Applications
• Concrete Mathematics: A Foundation for Computer Science - related topics. |
• Linear Algebra and Its Applications
• Introduction to Probability - written introductory probabilities book. ... It's free for [download (pdf)](http://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/amsbook.mac.pdf) (released under GNU Free Documentation License). |
• How to Solve It: A New Aspect of Mathematical Method - time classic. In this book, the author provides a systematic way to solve problems creatively. |
• Intermediate Counting & Probability - exclusion, 1-1 correspondences, the Pigeonhole Principle, constructive expectation, Fibonacci and Catalan numbers, recursion, conditional probability, generating functions, graph theory, and much more.. |
• Intermediate Counting & Probability - exclusion, 1-1 correspondences, the Pigeonhole Principle, constructive expectation, Fibonacci and Catalan numbers, recursion, conditional probability, generating functions, graph theory, and much more.. |
• Linear Algebra and Its Applications

Open Courses for Algorithms and Data Structures

• Competitive Programming - received book. ... The first edition is free for [download (pdf)](http://www.comp.nus.edu.sg/~stevenha/myteaching/competitive_programming/cp1.pdf). |
• Programming Challenges: The Programming Contest Training Manual
• Competitive Programmer's Handbook
• Algorithmic Thinking: A Problem-Based Introduction
• Computational Geometry: Algorithms and Applications - written book which covers a broad range of computational geometry problems. |
• The Hitchhiker’s Guide to the Programming Contests
• プログラミングコンテストチャレンジブック (Japanese)
• 算法竞赛入门经典 (Chinese)
• 算法竞赛入门经典——训练指南 (Chinese)
• 算法艺术与信息学竞赛 (Chinese) - time classic. It's old but the contents in this book are still considered to be very difficult by today's standards. |
• The Hitchhiker’s Guide to the Programming Contests
• 算法竞赛入门经典 (Chinese)
• 算法艺术与信息学竞赛 (Chinese) - time classic. It's old but the contents in this book are still considered to be very difficult by today's standards. |
• プログラミングコンテストチャレンジブック (Japanese)
• Algorithmic Thinking: A Problem-Based Introduction

Blogs

• Algorithms Weekly
• rng_58's blog
• Entropy always increases
• Psyho's blog
• Namespace Anudeep ;)
• vexorian's blog
• Fushar's blog
• WJMZBMR (Chinese)
• 小月的耍廢日誌 (Chinese)
• Morris' Blog (Chinese)
• xudyh (Chinese)
• Entropy always increases
• Fushar's blog
• WJMZBMR (Chinese)
• 小月的耍廢日誌 (Chinese)
• Morris' Blog (Chinese)
• xudyh (Chinese)
• WJMZBMR (Chinese)
• vexorian's blog

Quora

• Competitive Programming - Quora - Programming/writers)).
• Bill Poucher - ICPC](https://icpc.baylor.edu). CS Professor at Baylor University. |
• Michal Forišek (misof) - rated competitive programmer. |
• Ahmed Aly (ahmed_aly) - Aly). [HackerRank](https://www.hackerrank.com) Lead Software Engineer. Former member of the [Google Code Jam](https://code.google.com/codejam/) team. |
• Thanh Trung Nguyen (I_love_Hoang_Yen) - Bi) | [Jonathan Paulson (jonathanpaulson)](https://www.quora.com/profile/Jonathan-Paulson) |
• Miguel Oliveira (mogers) - Suvorov) | [Michal Danilák (Mimino)](https://www.quora.com/profile/Michal-Danil%C3%A1k) |
• Bohdan Pryshchenko (I_love_Tanya_Romanova) - Novakovski) | [Nick Wu (xiaowuc1)](https://www.quora.com/profile/Nick-Wu-4) |
• Cosmin Negruseri - Kundu) | [Ashish Kedia (ashish1294)](https://www.quora.com/profile/Ashish-Kedia) |
• Johnny Ho (random.johnnyh) - Pan-1) | [Anudeep Nekkanti (anudeep2011)](https://www.quora.com/profile/Anudeep-Nekkanti) |
• Steven Hao (stevenkplus) - T-V) | |

Youtube and Livestreams

• Youtube
• Youtube
• Competitive Programming Youtube (Arabic Speech-English Text)
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Twitch
• Twitch
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube
• Youtube

Camps and Trainings

• CodeLibrary
• igor's code archive
• spaghetti-source/algorithm - quality implementations of many hard algorithms and data structures. |
• kth-competitive-programming/kactl - crafted team notebooks (contest libraries) I've ever seen. |
• jaehyunp/stanfordacm - quality. |
• ngthanhtrung23/ACM_Notebook_new - ICPC World Finals. The items in this notebook are pretty standard and well-organized. |
• bobogei81123/bcw_codebook - ICPC World Finals. This notebook contains robust implementations for advanced data structures and algorithms. |
• foreverbell/acm-icpc-cheat-sheet
• igor's code archive

C/C++

• Power up C++ with the Standard Template Library - Topcoder: Part 1 - science/data-science-tutorials/power-up-c-with-the-standard-template-library-part-2/) | An introductory tutorial on basic C++ STLs. |
• Yet again on C++ input/output - Codeforces
• C++ Tricks - Codeforces - Quora](https://www.quora.com/Competitive-Programming/What-are-some-cool-C++-tricks-to-use-in-a-programming-contest) | Plentiful C++ tricks for competitive programming. Note that some should be used with care. |
• C++ STL: Policy based data structures - Codeforces: Part 1
• Yet again on C++ input/output - Codeforces
• C++ Tricks - Codeforces - Quora](https://www.quora.com/Competitive-Programming/What-are-some-cool-C++-tricks-to-use-in-a-programming-contest) | Plentiful C++ tricks for competitive programming. Note that some should be used with care. |
• C++ STL: Policy based data structures - Codeforces: Part 1

Java

• How to read input in Java — tutorial - Codeforces - read for those who intend to use Java for competitive programming |
• How to sort arrays in Java and avoid TLE - Codeforces
• BigNum arithmetic in Java — Let's outperform BigInteger! - Codeforces
• EZ Collections, EZ Life (new Java library for contests) - Codeforces
• How to read input in Java — tutorial - Codeforces - read for those who intend to use Java for competitive programming |
• How to sort arrays in Java and avoid TLE - Codeforces
• BigNum arithmetic in Java — Let's outperform BigInteger! - Codeforces
• EZ Collections, EZ Life (new Java library for contests) - Codeforces

Miscellaneous

• Bit Twiddling Hacks
• Comparing Floating Point Numbers, 2012 Edition - Random ASCII
• Object-Oriented C Style Languages: C++, Objective-C, Java, C# - a side-by-side reference sheet - by-side reference sheet for common syntaxes. |

Open Courses for Algorithms and Data Structures

• prakhar1989/awesome-courses#algorithms
• MIT SMA 5503: Introduction to Algorithms
• UIUC Algorithm Course

• Code Monk - by-step tutorial on the essential topics in competitive programming. |
• Stanford CS 97SI: Introduction to Competitive Programming Contests
• How to Win Coding Competitions: Secrets of Champions
• Codechef's Indian Programming Camp - from-indian-coding-camp/). Lectures given by top competitive programmers like Sergey Kulik, Kevin Charles Atienza and Anudeep Nekkanti. Primarily focused on exploring these concepts by applying them to actual competitive contest problems. |
• Reykjavik T-414-ÁFLV: A Competitive Programming Course
• NCTU DCP4631: Problem Solving and Programming Techniques
• Materials (English)
• Stanford CS 97SI: Introduction to Competitive Programming Contests
• Codechef's Indian Programming Camp - from-indian-coding-camp/). Lectures given by top competitive programmers like Sergey Kulik, Kevin Charles Atienza and Anudeep Nekkanti. Primarily focused on exploring these concepts by applying them to actual competitive contest problems. |
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques
• NCTU DCP4631: Problem Solving and Programming Techniques

Articles

• Overview of Programming Contests
• The 'science' of training in competitive programming - Codeforces
• If you ask me how to improve your algorithm competition skill, I will give you the link of this blog. - Codeforces - Wen (dreamoon) |
• Complete reference to competitive programming - HackerEarth
• Getting started with the sport of competitive programming - HackerEarth
• Complete reference to competitive programming - HackerEarth
• The 'science' of training in competitive programming - Codeforces
• If you ask me how to improve your algorithm competition skill, I will give you the link of this blog. - Codeforces - Wen (dreamoon) |

Awesome Lists

• The Definitive C++ Book Guide and List - Stack Overflow
• What are the best books to learn Java? - Quora
• What is the best book for advanced Java programming? - Quora
• tayllan/awesome-algorithms
• enjalot/algovis
• rossant/awesome-math
• fffaraz/awesome-cpp
• akullpp/awesome-java
• vhf/free-programming-books
• Hackr.io

FAQs

• How do I start competitive programming? - Quora
• How can I become good at competitive programming? - Quora - 3 months? - Quora](https://www.quora.com/What-is-the-best-strategy-to-improve-my-skills-in-competitive-programming-in-2-3-months) ... [What is a good 6 month plan to start and progress through competitive programming? - Quora](https://www.quora.com/What-is-a-good-6-month-plan-to-start-and-progress-through-competitive-programming) |
• How is competitive programming different from real-life programming? - Quora
• What have you gained from competitive programming? - Quora
• How do I start competitive programming? - Quora
• How can I become good at competitive programming? - Quora - 3 months? - Quora](https://www.quora.com/What-is-the-best-strategy-to-improve-my-skills-in-competitive-programming-in-2-3-months) ... [What is a good 6 month plan to start and progress through competitive programming? - Quora](https://www.quora.com/What-is-a-good-6-month-plan-to-start-and-progress-through-competitive-programming) |
• What have you gained from competitive programming? - Quora

Interview Questions

• InterviewBit - play designs which are designed to invoke one's interest in practicing. |
• LeetCode - organized website for software engineering interview preparation with best explanined solutions. |
• Awesome Interviews

Books for Mathematics

• Topcoder - discussed event. |
• Google Code Jam - esteemed programming competitions. The competition consists of unique programming challenges which must be solved in a fixed amount of time. Competitors may use any programming language and development environment to obtain their solutions. |
• CodeChef - profit educational initiative of Directi. It's a global competitive programming platform and has a large community of programmers that helps students and professionals test and improve their coding skills. Its objective is to provide a platform for practice, competition and improvement for both students and professional software developers. Apart from this, it aims to reach out to students while they are young and inculcate a culture of programming in India. |
• SPOJ - classifiers) section). SPOJ also allows advanced users to organize contests under their own rules. |
• Timus
• HDU
• Aizu Online Judge
• POJ - time issues may occur. |
• Project Euler
• Hackerearth
• Caribbean Online Judge
• Russian Code Cup - 8 problems which must be solved in a fixed amount of time. |
• CodeFights - tournaments. Good for beginners. |
• OmegaUp - based website for competitive programing training. It's also where Mexican Olympiad in Informatics (OMI : Olimpiada Mexicana de Informática) is hosted. |
• Codeforces
• POJ - time issues may occur. |
• CS Academy