Belajar coding dengan AI yang bisa Anda hentikan

Pilih latihan. Tulis sendiri, atau lihat AI menulis solusinya dan hentikan begitu Anda ingin mengambil alih. Semuanya berjalan di peramban Anda dan diperiksa dengan tes sungguhan.

✓ AI menulis di depan Anda✓ Hentikan dan ambil alih kapan saja✓ Berjalan di peramban Anda

Python

CPython 3.12 compiled to WebAssembly. Runs in your browser, not on our servers.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

12 latihan · ~83 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

12 latihan · ~134 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

12 latihan · ~202 min

JavaScript

Runs natively in an isolated worker. Nothing to download.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

2 latihan · ~10 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

2 latihan · ~20 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

2 latihan · ~38 min

SQL

Query a ready-made shop database. SQLite runs in your browser - unlimited and free.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

3 latihan · ~18 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

3 latihan · ~28 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

3 latihan · ~40 min

C

Compiled with gcc in a locked-down sandbox on our server.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

2 latihan · ~16 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

2 latihan · ~20 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

2 latihan · ~26 min

C++

Compiled with g++ (C++17) in a locked-down sandbox on our server.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

2 latihan · ~16 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

2 latihan · ~22 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

2 latihan · ~26 min

Java

Compiled and run on OpenJDK 17 in a locked-down sandbox on our server.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

2 latihan · ~15 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

2 latihan · ~20 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

2 latihan · ~24 min

C#

Compiled with Mono in a locked-down sandbox on our server.

Beginner

Variables, loops, strings, conditionals. One idea per exercise.

2 latihan · ~15 min

Intermediate

Comprehensions, classes, generators, sorting, recursion.

2 latihan · ~19 min

Advanced

Dynamic programming, graphs, protocols, caches, rate limiting.

2 latihan · ~24 min

Cara kerjanya

1. Baca ringkasannya — Setiap latihan menjelaskan persis apa yang harus dibuat, termasuk kasus tepinya.
2. Tulis sendiri, atau biarkan AI memulai — Tekan Biarkan AI menulis dan solusinya muncul baris demi baris di editor.
3. Hentikan kapan pun — Kode yang sudah tertulis tetap ada dan menjadi milik Anda. Menyelesaikan fungsi setengah jadi lebih mengajarkan daripada membaca yang sudah utuh.
4. Jalankan — Kode Anda berjalan di peramban ini dan diperiksa dengan tes latihan. Tidak ada yang dikirim ke mana pun untuk dijalankan.