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bzoj 4446 小凸玩密室

Posted on 2019-07-20

树形 $dp$ .

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bzoj 4444 国旗计划

Posted on 2019-07-19

$two\ pointer$ + 倍增.

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bzoj 4443 小凸玩矩阵

Posted on 2019-07-19

二分答案 + 二分图最大匹配.

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CF19E Fairy

Posted on 2019-07-19

树上差分.

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bzoj 4417 超级跳马

Posted on 2019-07-19

矩阵快速幂.

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bzoj 4416 阶乘字符串

Posted on 2019-07-18 | Edited on 2019-07-19

状压 $dp$ .

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test20190717

Posted on 2019-07-17

$noip$ 套题.

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bzoj 4414 数量积

Posted on 2019-07-17

结论题.

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Luogu 4783 矩阵求逆

Posted on 2019-07-17

矩阵求逆板子.

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NOI2019同步赛游记

Posted on 2019-07-16 | Edited on 2019-12-19

流星延停

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test20190715

Posted on 2019-07-15

神仙题,又被虐了.

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test20190714

Posted on 2019-07-15

又被虐了.

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bzoj 4407 于神之怒加强版

Posted on 2019-07-14

莫比乌斯反演.

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bzoj 4403 序列统计

Posted on 2019-07-14

组合计数 + $Lucas$ 定理.

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bzoj 4402 Claris的剑

Posted on 2019-07-14

组合计数.

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bzoj 4419 发微博

Posted on 2019-07-14

乱搞.

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CF1191

Posted on 2019-07-13

$Div.2$

怎么出了两个博弈的题啊…

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bzoj 4598 模式字符串

Posted on 2019-07-12

点分治 + $hash$ .

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bzoj 4893 聚变反应炉

Posted on 2019-07-12

贪心 + 树形背包.

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bzoj 4592 脑洞治疗仪

Posted on 2019-07-12

线段树.

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JKLover

JKLover

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