NISHIO Hirokazu[Translate]
頂点数18の制約
グラフの頂点数が18以下である制約

V <= 18
2^V == 262144
E <= 153
2^V * Wは4 * 10^7くらい→OK
想定解法は3^V == 387420489 (4 * 10^8)

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(C)NISHIO Hirokazu / Converted from [Scrapbox] at [Edit]