NeetCode offers coding interview practice through courses, assessments, head-to-head mode, and a catalog of programming problems.
Kattis
vs30 Seconds of Code
Kattis vs 30 Seconds of Code
How do Kattis and 30 Seconds of Code compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Kattis | 30 Seconds of Code |
|---|---|---|
| What it is | Kattis provides a problem archive for users to practice programming challenges. | 30 Seconds of Code offers hundreds of short coding articles to help readers practice programming skills. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Kattis and 30 Seconds of Code.
CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.
Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users.
EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
Exercism offers practice and mentoring across 83 programming languages.
Free
24 alternatives