Ugh, it was a hard contest. I spent a huge amount of time on both 2222D - Permutation Construction and 2222F - Building Tree, but couldn't crack them.
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Spectral::Cup 2026 Round 1 (CF 1094, Div. 1 + Div. 2) — Screencast & Editorial
Revision en1, by orz, 2026-04-25 21:08:54
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