For those who are participating in EJOI this year, where is the syllabus for EJOI ? I always find a syllabus for IOI, but never for EJOI. If there is one for EJOI, can you please send me the link directing to this syllabus ?

Thank you in advance, Bulgroz.

Hello Codeforces,

I know it's totally irrelevant to codeforces, but is there an app containing all techniques and tips of solving problems just like CP-Algorithms, but for IMO (international mathematical olympiad) ?

Thank you in advance, Bulgroz.

I know that Ejoi problems (4h) cannot be really compared with codeforces problems (2h), but how hard are Ejoi problems (based on codeforces rating difficulty) ?