Problem Set - 等级考

ID	Problem Show tags Hide tags	AC / Tried	Difficulty
3921	H741 小白鼠排队入门排序等级考	0 / 0	1
3922	H742 多余的数入门等级考	0 / 0	1
4047	P4047 小白鼠排队入门排序等级考	0 / 0	1
4048	P4048 多余的数入门等级考	0 / 0	1

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