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Master Programming Through Practice

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main.c

#include <stdio.h>
int main() {
    int n, reversed = 0;
    printf("Enter a number: ");
    scanf("%d", &n);
    while (n != 0) {
        reversed = reversed * 10 + n % 10;
        n /= 10;
    }
    printf("Reversed: %d\n", reversed);
    return 0;
}

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697

Coding Tasks

Courses

Users

Skills

Lessons

Overview

5 Ways to Level Up

Practice by solving problems, following courses and competing with peers.

Coding Tasks

Hundreds of problems across difficulty levels. Write real code, get instant feedback, and track your progress.

EASY C++

Reverse a Number

Score: 100pts • 342 solved

Structured Courses

Follow guided learning paths with video lessons, reading material, quizzes, and hands-on projects.

Intro to C++

12/18 lessons • 65% complete

Skill Tree

Visualize your programming abilities across multiple domains and see exactly where to improve.

● Arrays 85%

● Strings 72%

● Sorting 60%

● DP 30%

● Graphs 15%

● Recursion 55%

Contests

Compete in timed coding challenges, climb the leaderboard, and prove your skills under pressure.

Weekly Challenge #12

Live • 47 participants

★ 1. alex_dev 2. code_ninja 3. maria_42

Mentorship

Get code reviews from experienced mentors, give reviews to others, and grow through peer feedback.

Code Review

mentor_pro:

"Consider using a for loop instead of while for better readability."

Coding Tasks

Solve Real Coding Problems

Choose from hundreds of tasks organized by difficulty, language, and skill. Each task features an integrated code editor with syntax highlighting, instant compilation, and automated test case verification.

C, C++, Python, Java, JavaScript
Easy, Medium, Hard difficulty levels
Automated test cases with instant feedback
Points, streaks, and skill progression

Browse Tasks

task_solver.py

MEDIUM Python

Two Sum Problem

Find two numbers that add up to a target.

def two_sum(nums, target):
    seen = {}
    for i, n in enumerate(nums):
        if target - n in seen:
            return [seen[target-n], i]
        seen[n] = i

All 5 test cases passed • 12ms

Courses

Structured Learning Paths

From beginner to advanced: follow curated courses with video lectures, reading material, interactive quizzes, and hands-on coding projects. Track your progress and earn certificates.

Video, reading, and quiz lesson types
Chapter-based organization
Progress tracking with completion certificates
Curated learning paths across topics

Explore Courses

courses

Intro to C++ Programming

12 of 18 lessons completed

Variables & Data Types

Control Flow

Functions & Scope

Pointers & Memory

Object-Oriented Programming

Compete

Test Your Skills in Live Contests

Join timed coding contests, compete on seasonal events, and climb the global leaderboard. Prove your mettle against coders from around the world in real-time challenges.

Timed contests with live scoreboards
Seasonal events and special challenges
Global leaderboard rankings
Contest history and analytics

View Contests

contest #12

Spring Coding Championship

Time remaining:

01hr

34min

12sec

#	Coder	Score	Time
1	alex_dev	450	42:18
2	code_ninja	420	45:02
3	maria_42	380	48:55
4	you	350	50:11

Teaching

Built for Educators

Create classes, assign tasks, monitor student progress with detailed analytics, and even detect plagiarism. Perfect for computer science teachers and university instructors.

Classroom and assignment management
Student progress and grade analytics
Automated plagiarism detection
Organization support with seat management

For Educators

class dashboard

CS101: Introduction to Programming

28 students • 6 assignments

Student	Completed	Avg Score	Status
Emma Wilson	6/6	94%	On Track
James Chen	5/6	87%	On Track
Sofia Garcia	4/6	72%	Behind
Liam Brown	3/6	65%	At Risk

Community

Learn Together

Terminal43 Code isn't just a solo experience. Give and receive code reviews, discuss problems with peers, and see how you stack up on the leaderboard.

Code Reviews

Request reviews from mentors or review others' code. Learn best practices through collaborative feedback.

3 n = n / 10;

4 count = count + 1;

mentor_pro

Use count++ instead for cleaner syntax.

Discussion Forums

Ask questions, share solutions, and discuss algorithms with a community of fellow learners.

Help with recursion? 12 replies

Big-O notation tips 8 replies

Best way to learn DP? 23 replies

Leaderboard

Compete for the top spot. Earn points from tasks, contests, and courses to climb the global rankings.

#	User	Points
1	★ alex_dev	4,820
2	code_ninja	4,215
3	maria_42	3,990

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