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Little Jian

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hdu_5405 Sometimes Naive

Posted on 二月 23, 2019 by Little Jian

题目:   Rhason Cheung had a naive problem, and asked Teac […]

Posted in 树状数组, 树链剖分Tagged 树状数组, 树链剖分Leave a comment on hdu_5405 Sometimes Naive

hdu_5333 Undirected Graph

Posted on 二月 17, 2019 by Little Jian

题目:   As we know, Rikka is poor at math. Yuta is worryi […]

Posted in Link-Cut-Tree, 最小生成树Tagged LCT, 最大生成树Leave a comment on hdu_5333 Undirected Graph

hdu_5398 GCD Tree

Posted on 二月 16, 2019 by Little Jian

题目:   Teacher Mai has a graph with n vertices numbered […]

Posted in Link-Cut-TreeTagged LCTLeave a comment on hdu_5398 GCD Tree

hdu_2475 Box

Posted on 二月 10, 2019 by Little Jian

题目:   There are N boxes on the ground, which are labele […]

Posted in splayTagged splayhdu_2475 Box有1条评论

NOI2005 维护数列

Posted on 二月 10, 2019二月 10, 2019 by Little Jian

题目: 思路:   如果只有 三个操作,这个问题就可以放在线段树上解决。只要维护每个区间的和,最大子列和,最大 […]

Posted in splayTagged splayLeave a comment on NOI2005 维护数列

hdu_3436 Queue-jumpers

Posted on 二月 10, 2019二月 10, 2019 by Little Jian

题目:   Ponyo and Garfield are waiting outside the box-of […]

Posted in splayTagged splayLeave a comment on hdu_3436 Queue-jumpers

NOI2017 蔬菜

Posted on 二月 3, 2019二月 9, 2019 by Little Jian

题目:   小 N 是蔬菜仓库的管理员,负责设计蔬菜的销售方案。   在蔬菜仓库中,共存放有 种蔬菜,小 N […]

Posted in 贪心Tagged 贪心Leave a comment on NOI2017 蔬菜

JXOI2017 数列

Posted on 一月 19, 2019一月 19, 2019 by Little Jian

题目:   九条可怜手上有一个长度为 的整数数列 ,她现在想要构造一个长度为 的,满足如下条件的整数数列 : […]

Posted in 动态规划Tagged dp, 优化状态Leave a comment on JXOI2017 数列

NOI2017 整数

Posted on 一月 19, 2019 by Little Jian

题目:   在人类智慧的山巅,有着一台字长为 位的超级计算机,著名理论计算机科学家 P 博士正用它进行各种研究 […]

Posted in 线段树Tagged 线段树Leave a comment on NOI2017 整数

JOISC2018 図書館

Posted on 一月 19, 2019一月 19, 2019 by Little Jian

题目:   在几百年之后,JOI 城已经变成了一片废墟,探索者 IOI 酱正在探索一片之前是图书馆的区域。根据 […]

Posted in 杂题Tagged 二分, 交互题Leave a comment on JOISC2018 図書館

hdu_6088 Rikka with Rock-paper-scissors

Posted on 一月 16, 2019 by Little Jian

题目:   As we know, Rikka is poor at math. Yuta is worryi […]

Posted in 快速傅立叶变换, 欧拉函数Tagged fft, 欧拉函数Leave a comment on hdu_6088 Rikka with Rock-paper-scissors

PKUSC2018 神仙的游戏

Posted on 一月 15, 2019一月 15, 2019 by Little Jian

题目:   小 和小 是两位神仙。他们经常在一起玩神仙才会玩的一些游戏,比如 “口算一个 4 位数是不是完全平 […]

Posted in 快速傅立叶变换Tagged ntt, 生成函数Leave a comment on PKUSC2018 神仙的游戏

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