TLX (TOKI Learning Center)
Enter rated mirrors of Indonesian olympiad and ICPC-style contests
TLX is the contest and training platform of TOKI, the organisation behind Indonesia's informatics olympiad team. It hosts rated contests, often mirrors of Indonesian contests such as the National Contest, COMPFEST and the NOI Open, in both ICPC and IOI styles. It also has problem sets and an archive.
Free · Login needed · Browser
About TLX (TOKI Learning Center)
It trains competitive programming from beginner courses up to olympiad level, and suits students preparing for olympiads or ICPC.
It runs in the browser and is free with an account. Most problems are available in English and Indonesian. Rated contests change your TLX rating.
On Breakpoint since 25 Oct 2026.
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