East Central North America 2000 - 题库

ID	题目显示标签隐藏标签	AC / 尝试	难度
649	P1639 Picnic Planning East Central North America 2000	0 / 0	(无)
650	P1640 Poly-polygonal Numbers East Central North America 2000	0 / 0	(无)
651	P1641 Rational Approximation East Central North America 2000	0 / 0	(无)
652	P1642 Stacking Cubes East Central North America 2000	0 / 0	(无)
653	P1643 Checker's Check East Central North America 2000	0 / 0	(无)
654	P1644 To Bet or Not To Bet East Central North America 2000	0 / 0	(无)
655	P1645 BSP Trees East Central North America 2000	0 / 0	(无)
656	P1646 Double Trouble East Central North America 2000	0 / 0	(无)

根据当前过滤条件随机选择一道题

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