关于难度

P2619 [国家集训队] Tree I

敢不敢上大号说话。
by irris @ 2023-12-02 18:47:26


需要注意的是,这里所谓的二分是 wqs 二分。
by lsj2009 @ 2023-12-02 19:03:08


@[irris](/user/419487) 大号审禁了今天上课做的找了原题
by wind_kaka @ 2023-12-02 19:10:15


建议升紫(确信)
by MarSer020 @ 2023-12-02 19:25:27


@[MarSer020](/user/475112) 不如帮我[调题](/discuss/738023) /se/se
by wind_kaka @ 2023-12-02 19:44:59


@[lsj2009](/user/468657) 但是思维较简单a /kel/kel/kel
by wind_kaka @ 2023-12-02 19:46:18


我错了请踹我
by wind_kaka @ 2023-12-02 19:47:07


如果
by wind_kaka @ 2023-12-02 22:21:11


@[__xixi__](/user/845276) ?
by LuoTianyi_Official @ 2023-12-06 23:47:44


@[wind_kaka](/user/845276) 敢不敢上大号说话
by WRuperD @ 2024-01-14 21:36:49


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