J’F Original Problems
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15th of June, 2017 |
Animated diagrams use Py2Web by Dmitri Turevski and WinChloe’s graphics. |
All previously published problems you can find in the subsections of Original Problems menu on the top. The judge of JF-2017(I): Tadashi Wakashima. The judge of Retro & PG problems 2017-2018: Dirk Borst.