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codeforces(4) lca(1) poj(1) RMQ(2) 位运算(1) 动态规划(4) 单调栈(1) 博弈论(4) 图论(7) 思维水题(2) 数论(2) 树状数组(1) 模板水题(5) 模板记录(7) 面积几何(1) 题解(1)

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全部文章 / 未归档（共42篇）

hdu 3023 Dirt 优先队列&&bfs&&启发思路

-- Hello, may I speak to Petrov, please? Hello, my darling... You know, there was a little accident at our home... No, no, don't worry, your computer ...

2019-02-06

0 436

hdu 2879 HeHe 欧筛&&积性函数

In the equation X^2≡X(mod N) where x∈[0,N-1], we define He[N] as the number of solutions. And furthermore, define HeHe[N]=He[1]*……*He[N] Now here is...

2019-02-02

0 498

hdu 2873 Bomb Game 博弈论&&二维sg打表

John and Jack, two mathematicians, created a game called “Bomb Game” at spared time. This game is played on an n*m chessboard. A pair of integers (p, ...

2019-02-01

0 390

待完成的训练任务

感觉平时有很多时候进阶题刷到了不会做然后想着以后有机会一定刷刷基础题然后时间长了就忘了要学什么东西了。。。然后在此记录一下，想写几个以后想到了再慢慢更新 1.dp 这个万年毒瘤就是不会。。。而且咕咕咕了将近半年了也没怎么开始大力入手 2.线段树之前入门过。。但是吧时间太长有点忘了...

2019-02-01

0 387

hdu2868 Neighbor Friend floyd&&思维

Suppose we sort N persons in a line according to their heights,we are curious about the Neighbor Friend. A pair of Neighbor Friend is two person next...

2019-02-01

0 401

hdu2860 Regroup 简单并查集&&维护点权值

When ALPC42 got to a panzer brigade, He was asked to build software to help them regroup the battalions or companies. As the tradition of army, soldi...

2019-02-01

0 463

P1337 [JSOI2004]平衡点 / 吊打XXX 随机化搜索&&模拟退火

题目描述如图：有n个重物，每个重物系在一条足够长的绳子上。每条绳子自上而下穿过桌面上的洞，然后系在一起。图中X处就是公共的绳结。假设绳子是完全弹性的（不会造成能量损失），桌子足够高（因而重物不会垂到地上），且忽略所有的摩擦。问绳结X最终平衡于何处。注意：桌面上的洞都比绳结X小得多，所以即...

2019-01-23

0 466

hdu2866 D - Special Prime 数论+打表

Give you a prime number p, if you could find some natural number (0 is not inclusive) n and m, satisfy the following expression: D - Special Pr...

2019-01-22

0 433

hdu2864 Base B 思维&&进制题

“Base B” HDU - 2864 AekdyCoin is so fond of math.He loves Number.He knows how to express a non-negative number into P base.Say,he knows that the n...

2019-01-22

0 487

hdu 2855 Fibonacci Check-up 矩阵快速幂&&模板

Fibonacci Check-up HDU - 2855 Every ALPC has his own alpc-number just like alpc12, alpc55, alpc62 etc. As more and more fresh man join us. How...

2019-01-21

0 534