USACO - 题库 - HydroOJ

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	1693	USACOC1912B Sleepy Cow Sorting 2019 USACO 黄金组提高 price::50 source::USACO	0 / 0	(无)
	1694	USACOC1912C ShortCut 2019 USACO 黄金组提高 price::50 source::USACO	0 / 0	(无)
	1696	USACOC1921A Cow Dating 2019 USACO 铂金组省选 price::50 source::USACO	0 / 0	(无)
	1697	USACOC1921B Moorio Kart 2019 USACO 铂金组省选 price::50 source::USACO	0 / 0	(无)
	1772	USACOC2111A United Cows of Farmer John 2021 USACO 铂金组黄金组 price::50 source::USACO	0 / 0	(无)
	1773	USACOC2111B Routing Schemes 2021 USACO 铂金组 price::50 source::USACO	0 / 0	(无)
	1776	USACOC2111C Balanced Subsets 2021 USACO 铂金组 price::50 source::USACO	0 / 0	(无)
	1774	USACOC2112B Portals 2021 USACO 黄金组 price::50 source::USACO	0 / 0	(无)
	1775	USACOC2112C Permutation 2021 USACO 黄金组 price::50 source::USACO	0 / 0	(无)
	1781	USACOC2113A Maze Tac Toe 2021 USACO 银组 price::50 source::USACO	0 / 0	(无)
	1780	USACOC2113B Do You Know Your ABCs? 2021 USACO 银组 price::50 source::USACO	0 / 0	(无)
	1979	USACOC2211B Paired Up 2022 USACO 铂金组 price::50 source::USACO	0 / 0	(无)
	1980	USACOC2211C HILO 2022 USACO 铂金组 price::50 source::USACO	0 / 0	(无)
	1981	USACOC2212C Bracelet Crossings 2022 USACO 黄金组 price::50 source::USACO	0 / 0	(无)
	1982	USACOC2213A Closest Cow Wins 2022 USACO 银组 price::50 source::USACO	0 / 0	(无)
	1983	USACOC2213B Connecting Two Barns 2022 USACO 银组 price::50 source::USACO	0 / 0	(无)
	1984	USACOC2213C Convoluted Intervals 2022 USACO 银组 price::50 source::USACO	0 / 0	(无)
	1985	USACOC2214A Lonely Photo 2022 USACO 铜组 price::50 source::USACO	0 / 0	(无)
	1986	USACOC2214B Air Cownditioning 2022 USACO 铜组 price::50 source::USACO	0 / 0	(无)
	1987	USACOC2214C Walking Home 2022 USACO 铜组 price::50 source::USACO	0 / 0	(无)

根据当前过滤条件随机选择一道题