free-programming-books
Freely available programming books
View the Project on GitHub
EbookFoundation/free-programming-books
Index
Competitive Programming
CTF Capture the Flag
Data science
HTML and CSS
Ladders
Problem Sets
Competitive Programming
A Way to Practice Competitive Programming
- Masataka Yoneda (PDF)
A2 Online Judge
Algorithms for Competitive Programming
APL Problem Solving Competition
AtCoder
beecrowd
COCI
Codeabbey
Codechef
Codecombat
Codeeval
CodeFights
Codeforces
Codeground
Coderbyte
Codewars
Codingame
Competitive Programming Cheat Sheet
CSES Problem Set
Dimik
DMOJ
E-olymp
Exercism
HackerEarth
Hackerrank
Internet Problem Solving Contest
Just another Golf Coding
Kattis
Last Moment DSA Sheet(79) – Ace Interviews
- Striver
LeetCode
LightOJ
Meta Hackercup
Newton School
oj.uz
Sigmageek
Sphere Online Judge
Techgig
Top Coding Interview Problems
- Striver
Topcoder
Toph
USACO.guide
Capture the flag
ångstromCTF
CTFlearn
(email address
requested
)
CTFtime
DamnVulnerableDefi
echoCTF
(email address
requested
)
Google CTF
(email address
requested
)
Hacker101
(email address
requested
)
Hackthebox
(email address
requested
)
HackThisSite
(email address
requested
)
InCTF
Microcorruption
Overthewire Wargames fungame to practice CTF
Picoctf
(email address
requested
)
ringzer0ctf
(email address
required
)
ROP Wargame Repository
SmashTheStack
TryHackMe
(email address
requested
)
Data science
AIcrowd
CodaLab
CrowdANALYTIX
DrivenData
Kaggle
Zindi
HTML and CSS
Frontend Mentor
(email address requested)
Ladders
A2 Online Judge
Atcoder Problems
C2 Ladders
Striver’s A2Z DSA Course/sheet
Striver’s CP Sheet
Problem Sets
#C++
- Keerti Purswani
100 Days CSS Challenge
- Matthias Martin
(Codepen account requested, not required)
500 Data structures and algorithms interview questions and their solutions in C++
Abekus | Free Practice Questions with Solutions
Advent Of Code
AdventJS - 25 días de retos con JavaScript
- Miguel Ángel Durán «midudev»
(GitHub account requested, not required)
Anarchy Golf
APL Practice Problems
BaekJoon Online Judge
beecrowd
CareerCup
CheckIO
Codechef
Codedrills
Codeforces
Codility
Coding Bat
Coding Interview Questions and answers for practice | Python, Java & C++
- CodingNinjas
Coding Ninjas Guided Paths
CSES Problem Set
DSA Learning Series
Dynamic A2OJ Ladder
Edabit
Exercism
Geeks For Geeks
Grind 75
Hacker.org
HackerEarth
HDU Online Judge
IndiaBix
Interactive Coding Challenge
InterviewBit
Kattis
Mathproblem of the Month - Bilkent University
NeetCode 150
PEG Judge
Pep Coding
PKU Online Judge
Ponder This!
Practice Python
ProblemBook.NET
Project Euler
Python Practice Projects
Rosalind
Sphere Online Judge
TalentBuddy
The Ultimate Topic List(with Tutorials, Problems, and Templates)
- Shahjalal Shohag
Timus Online Judge
Top Interview 150
- LeetCode
Topic wise multiple choice questions in computer science
- Geeks For Geeks
UVa Online Judge
Vulnhub.com
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