Editorial
Overall Editorial
A - Make M
B - Exactly Three Bits
C - Dyed by Majority (Odd Tree)
D - Everywhere is Sparser than Whole (Construction)
E - Not Dyed by Majority (Cubic Graph)
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Official
解説 by
ygussany
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Official
補足 by ygussany
- Official Editorial by evima
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Official
Supplement by ygussany
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Practical Proof During Contest by
i_am_noob
