Streak · 7 days+185 XP
7-Day C Snippet Streak
Write and run one tiny C program each day using a free online compiler, like printing a times table. Check in daily.
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Coding · Facts & stats · iChallenge network
The C Challenge
Daily facts and stats about the C programming language, plus real challenges to put them to work.
Warm-up questionNot ranked · tap an answer
What does a pointer variable in C store?
A pointer holds the location of another value, which you reach by dereferencing it.
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Streak0days
LeagueBronzeweekly
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Today's round
- 5 questions
- 20s each
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Challenges
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Proof+250 XP
Hello, World in C
Write, compile and run a Hello, World program in C and post a link to the code or a short write-up of the steps.
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Streak · 10 days+200 XP
10-Day Concept a Day
Each day, study one C concept (arrays, pointers, loops, strings) and write a two-line example. Check in once a day.
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By the numbers
Live counts from CChallenge.com. All arena stats →
Facts in the pack12
Visitors, 30 days22
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First RoundFinish your first daily round.
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Week WarriorPlay 7 days in a row.
UnbreakablePlay 30 days in a row.
ExplorerPlay daily rounds in 5 different arenas.
GlobetrotterPlay daily rounds in 25 different arenas.
PolymathPlay daily rounds in 5 different topics.
In the ArenaJoin your first challenge.
FinisherComplete a challenge.
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ChallengerReach level 10.
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Questions
How do I start?
Play today's quiz round, post your score, and start a streak.
What do I earn?
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
How does the daily round work?
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
How is my score calculated?
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Is it free?
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.
