Learn C++ from scratch — with every program compiled for you
A hands-on C++ course for complete beginners. You write real C++ in the browser and it is compiled and tested for you — no toolchain to install, no cryptic linker errors on day one. Short interactive lessons introduce each idea; coding challenges make it stick. You finish understanding pointers, references and the STL without fear.
#include <iostream>
using namespace std;
int main() {
cout << "Hello, C++!" << endl;
for (int i = 1; i <= 5; i++)
cout << i << " squared is " << i * i << endl;
return 0;
}Why learn C++ here
Understand how computers really work
C++ puts memory in your hands — pointers, references, the stack and the heap. Learning it makes every other language clearer, because you finally see what is happening underneath.
The language of speed
C++ powers games, browsers, databases and competitive programming precisely because it is fast. This course teaches modern C++ — clean, safe, and idiomatic — not the C-with-classes of decades past.
The STL is your toolbox
vector, string, map, set, sort — the Standard Library does the heavy lifting. A whole chapter is devoted to it, so you write short, correct C++ instead of reinventing everything.
The syllabus — 8 chapters, in order
Each chapter is a set of short interactive lessons, then coding challenges you submit to a real judge before moving on.
- 01Getting Started
- 02Decisions & Loops
- 03Functions & Lists
- 04Strings
- 05Pointers & References
- 06The Standard Library
- 07Classes & Objects
- 08Templates & Generic Code
What you can do by the end
- Write and compile C++ — variables, types, and clean cout output
- Control flow with if/else, for and while loops
- Write functions and use vectors and strings
- Understand pointers and references without the fear
- Use the STL — map, set, sort and more
- Design classes, and write generic code with templates
How the course works
Read a short lesson
One idea at a time, written for a beginner — with worked examples and quick-check questions, not a video to scrub through.
Write real C++
Every lesson ends in an in-browser editor. Nothing to install — you write C++ and press run.
A real judge checks it
Your code is compiled and run against hidden tests, so you know it actually works instead of guessing.
C++ from scratch — questions people ask
How do I learn C++ from scratch?
Start with printing, variables and loops, then build up through functions, pointers and the STL, writing code at every step. This course is that path: eight chapters of interactive lessons and coding challenges, each compiled and tested by a real judge.
Is this C++ course free?
You can start for free with no card. A free account opens the interactive workspace and the first lessons; one membership then unlocks the whole C++ course plus the Python, Java and JavaScript courses and the full DSA course.
Do I need to install a compiler?
No. Your code is compiled and run for you in the browser with a modern GCC, so there is nothing to set up.
Is C++ hard to learn as a first language?
It has a reputation for it, mostly because of setup and memory. This course removes the setup entirely and draws pointers and memory as pictures first, so the hard parts become approachable.
Is C++ good for coding interviews and competitive programming?
It is the top choice for competitive programming and one of the strongest for interviews because it never fails a time limit. After this course, the Data Structures & Algorithms course (taught in C++ too) is included in the same membership.
Will I get a certificate?
Yes. Completing the course issues a certificate with a public verification link an employer can check.
Also included in your membership
One membership unlocks every course — switch between them whenever you like. Nothing here is sold separately.
Start C++ today — free
A free account opens the workspace and the first lessons, no card. One membership then unlocks this course and every other — $49 a year (international price; the price for your region is shown at checkout).