Meaning of work as hard
Supermassive black hole at the centre of Milky way: What is the compelling evidence?
Code Wars Training with code challenges.
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Ruby Quiz(Ruby) – Ruby Quiz is a weekly programming challenge for Ruby programmers in the spirit of the Perl Quiz of the Week. A new Ruby Quiz is sent to the Ruby Talk mailing list each Friday.
Engineering Puzzles at Facebook Puzzles provided for the purposes of evaluating potential hires
LessThanDots Programmer Puzzles forum
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Change the color of a counter number
Appropriate response when someone announces pregnancy?
Quizful- interactive programming quizzes in Duolingo style. This site looks fun and has a good set of questions, at least in Java. Plus, as they say, it has adaptive learning algorithm, that makes learning more effective.
Why does adding a 9 or a multiple of 9 always lead to the reverse of the number?
What does the letter G mean in a runway identifier?
Solve algorithmic and datatypes problems
Ponder this at IBM Research Puzzles provided for the purposes of evaluating potential hires
Detailed answers to any questions you might have
geras insecure programming challenges
How to communicate to a new coworker that I am not comfortable being touched?
Google Code Jamalgorithmic puzzles
Codingame- fun games (solo and multiplayer) to practice your coding skills. Supports 25+ programming languages.
Cracking the Coding Interview (6th Edition)
How to deserialize JSON to a class where the same variable name has different data types?
Ninth Annual ICFP Programming Contest Task archive
and supports a good selection of languages. It is intended to support doingdeliberate practiceofTDD, but could be used for personal development too.
Educational Computing Organization of Ontairos past computer programming puzzles
CheckiO- Python programming challenges. Custom Missions can be created by members.
Codingbathas lots of coding challenges ranging from warm-ups to Harder recursion problems. It is available in Java and Python.
Should I say I have a Bachelor Degree when actually my degree is another one?
Valid Tourist Visa for Business purpose
Algorithmist Includes lists of algorithms and other puzzle sites
Pex for fun game from Microsoft research where you duel against other programmers
Im trying to find places where I can hone my craft outside the context of school or work. Are there places online, or books available, where I can access lists of programming puzzles or challenges?
Pick a tag, follow the new questions posted, and try to solve them. If you find a good one, bookmark it for later use:
Rankk You start with the easy levels and progress to the intermediate and hard levels by solving the minimum number of required challenges at each level. The journey to the top is an arduous yet rewarding one. You need to be sufficiently determined and persevering to go far. Only a few are expected to reach the apex and attain Geb.
International Olympiad in Informatics- yearly contents for teams of students. (previous years problem sets)
Need help remembering a magic anime with a young girl and her pet
exercism- Challenges in more than 30 languages that will be evaluated automatically.
Rosalindalgorithms and bioinformatics
closedas not constructive byJim G.gnatWalterRyathalDynamicSep 29 12 at 2:54
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Underhanded C Contest(C) – contest to turn out code that is malicious, but passes a rigorous inspection, and looks like an honest mistake. (Try to understand previous years entries, and learn to find similar mistakes in other peoples code)
When were background processes invented?
Would you like to answer one of theseunanswered questionsinstead?
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Career Cup Collects community-subumitted interview questions from various tech companies
An old short story: man goes into a fortune-tellers tent, glasses knocked off
Start here for a quick overview of the site
Prolog Problems(Prolog) The purpose of this problem collection is to give you the opportunity to practice your skills in logic programming. Your goal should be to find the most elegant solution of the given problems. Efficiency is important, but logical clarity is even more crucial. Some of the (easy) problems can be trivially solved using built-in predicates. However, in these cases, you learn more if you try to find your own solution.
Online judges / automatic assessment
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Discuss the workings and policies of this site
What are possible reasons to use Cathode-Ray Displays by tech-advanced civilizations
Can Boon of Luck be recharged on a long rest?
The Daily WTFs Bring Your Own Code series
Learn more about Stack Overflow the company
ACM/ICPC Problem Index @ HIT List of problems from theACM International Collegiate Programming Contest
Can I replace my missing eye with a magic one?
Is there a more general term for googling that doesnt imply a particular search engine?
4Clojure(Clojure) 4Clojure is a resource to help fledgling clojurians learn the language through interactive problems. The first few problems are easy enough that even someone with no prior experience should find the learning curve forgiving. See Help for more information.
University of Valladolid Online Judge
Why can a wave be expressed with a sine function?
Python Challenge(Python) Python Challenge is a game in which each level can be solved by a bit of (Python) programming.
Peking University JudgeOnline for ACIP/ICPC
IOCCC(C) – A contest to write the most obscure/obfuscated C program. (Fun to try to understand the previous years entries, or to submit a new one.)
There are 4 cups of liquid. Three are water and one is poison. If you were to drink 3 of the 4 cups, what is the probability of being poisoned?
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General request for a book on mathematical history, for a VERY advanced reader.
TheBlacksheepvarious challenges, security and programming themed.
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