USACO Training - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	26	P26 「一本通 1.3 练习 3」质数方阵搜索 USACO Training	2 / 16	9
	29	P29 「一本通 1.4 例 2」魔板搜索 USACO Training	6 / 18	8

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