Compete. Code. Conquer.
Join thousands of developers in competitive programming challenges. Test your skills, climb the leaderboard, and become a coding champion.
#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
// Your solution here
for(int i = 0; i < n; i++) {
cout << "Hello CodeArena!" << endl;
}
return 0;
}Why Choose CodeArena?
Everything you need for competitive programming in one platform
Multi-Language Support
Write code in Python, C++, Java, JavaScript, and more. Our compiler supports 10+ programming languages.
Real-Time Execution
Instant code compilation and execution with detailed feedback on test cases and performance metrics.
Competitive Contests
Participate in daily, weekly, and monthly contests. Compete with developers worldwide.
Live Leaderboards
Track your progress and see how you rank against other participants in real-time.
Community Driven
Create your own contests, share problems, and engage with a vibrant coding community.
Skill Recognition
Earn badges, certificates, and recognition for your achievements and problem-solving skills.
Upcoming Contests
Don't miss these exciting coding challenges
Let's Work Together
Have a project in mind? We'd love to hear from you. Send us a message and we'll respond as soon as possible.
About CodeArena
Your gateway to competitive programming excellence
Our Mission
CodeArena is dedicated to fostering a global community of passionate programmers. We provide a platform where developers of all skill levels can challenge themselves, learn from others, and showcase their coding prowess through competitive programming.
How It Works
Sign Up
Create your free account and set up your profile in minutes.
Choose Contest
Browse through various contests and select one that matches your skill level.
Write Code
Solve problems using our built-in multi-language compiler and IDE.
Submit & Compete
Submit your solution and see your ranking on the live leaderboard.
Eligibility
Open to All
Anyone with a passion for coding can participate, regardless of age or location.
All Skill Levels
From beginners to experts, we have contests tailored for every proficiency level.
Fair Play
We maintain strict anti-plagiarism measures to ensure fair competition.
Free Access
All core features are completely free. Premium features available for advanced users.
Supported Languages
All Contests
Find the perfect challenge for your skill level
Create New Contest
Share your coding challenges with the community
Global Leaderboard
Top performers across all contests
| Rank | User | Score | Contests | Problems Solved | Accuracy |
|---|
Contest Rules & Guidelines
Please read carefully before participating
General Rules
- All participants must register with a valid email address
- Each participant can submit only one solution per problem
- Solutions must be original work - plagiarism will result in disqualification
- Participants must not share solutions during active contests
- Use of external libraries must be declared and approved
Time & Submission
- Contest duration is clearly specified for each competition
- Late submissions will not be accepted
- Time penalty applies for incorrect submissions
- System time is the official reference for all deadlines
- Participants can submit multiple times before the deadline
Code Requirements
- Code must compile and run without errors
- Solutions must pass all test cases to receive full points
- Time and memory limits must be respected
- Code should be well-commented and readable
- Standard input/output must be used as specified
Scoring System
- Points are awarded based on problem difficulty and completion time
- Partial credit may be given for partially correct solutions
- Penalty points are deducted for wrong submissions
- Tie-breakers are resolved by submission time
- Final rankings are published after contest completion
Prohibited Actions
- Using multiple accounts to participate in the same contest
- Attempting to hack or manipulate the judging system
- Sharing or discussing solutions during active contests
- Using automated tools to generate solutions
- Any form of cheating or unfair advantage
Code of Conduct
- Treat all participants with respect and courtesy
- Report any suspicious activity to moderators
- Provide constructive feedback in discussions
- Help maintain a positive learning environment
- Follow community guidelines at all times