思路:DP 提交:1次 题解: 最开始我们可以想到,分两种序列都做一遍. 先来证明一个结论: 存在一种构造,使 \(B\) 中的数都在 \(A\) 中出现过,且这样不劣. (目的是为了转化暂时看起来虚无缥缈的DP) 显然一个数成立,考虑 \(B\) 的前 \(k-1\) 项,向后插入一个数 \(B_k\). 若 \(B_{k-1}\leq A_k\) ,我们直接递增插入,否则 \(B_k=B_{k-1}\) ,亦或者存在一个 \(j\) ,使 \(B_j,B_{j+1},\cdots,B_{k}…

Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but they are not fond of an alternating succession of hills and valleys. FJ…

Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but they are not fond of an alternating succession of hills and valleys. FJ…

C. Efim and Strange Grade time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Efim just received his grade for the last test. He studies in a special school and his grade can be equal to any po…

Making the Grade Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6445   Accepted: 2994 Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up…

15.7 Imagine a simple database storing information for students' grades. Design what this database might look like and provide a SQL query to return a list of the honor roll students (top 10%), sorted by their grade point average. 在一个简化的数据库中我们有三个表,St…

It all started the summer before second grade when our moving van pulled into herneighborhood It all started (in) the summer before second grade when our moving van pulled into herneighborhood 省略了 in  语法也是根据语言习惯自己总结的东西是语言创造语法[小学]阿康(353636164)  18:58:…

Altera的-6.-7.-8速度等级逆向排序,Xilinx速度等级正向排序. 不很严密地说,“序号越低,速度等级越高”这是Altera FPGA的排序方法, “序号越高,速度等级也越高”这是Xilinx FPGA的排序方法. 从那时起,就一直没搞明白speed grade是怎么来的,唯一的概念是:同一款芯片可以有多个速度等级,不同的速度等级代表着不同的性能,不同的性能又导致芯片价格的巨大差异.脑子里总有 一个模模糊糊的推测:FPGA厂家为了提高利润,专门给同一款芯片生产了不同的速度等级. 直到…

Description 题目描述 Ted is a employee of Always Cook Mushroom (ACM). His boss Matt gives him a pack of mushrooms and ask him to grade each mushroom according to its weight. Suppose the weight of a mushroom is w, then it’s grade s is s = 10000 - (100 - w…

Grade Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 109    Accepted Submission(s): 63 Problem Description Ted is a employee of Always Cook Mushroom (ACM). His boss Matt gives him a pack of m…