The 9th Zhejiang Provincial Collegiate Programming Contest A    Taxi Fare    25.57% (166/649)     (水题)    计算两种计程车计费方式的差值, 注意四舍五入    B    Unrequited Love    14.00% (7/50)    水题) C    Count the Trees    9.87% (8/81)   (二叉树)    卡特兰数应用的问题     D    Draw S…

一.知识目录 字符串处理 ................................................................. 3 1.KMP 算法 ............................................................ 3 2.扩展 KMP ............................................................ 6 3.Manacher 最长回文子串 .......…

Django-Model操作数据库(增删改查.连表结构) 一.数据库操作 1.创建model表        …

Kindergarten Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 4903   Accepted: 2387 Description In a kindergarten, there are a lot of kids. All girls of the kids know each other and all boys also know each other. In addition to that, some…

 physics(物理) Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)   Description 题目描述 There are n balls on a smooth horizontal straight track. The track can be considered to be a number line. The balls can be considered…

physics 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5826 Description There are n balls on a smooth horizontal straight track. The track can be considered to be a number line. The balls can be considered to be particles with the same mass. At the…

  Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1363   Accepted: 476   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment, all N balls are f…

Description Simon ), the first ball is released and falls down due to the gravity. After that, the balls are released one by one in every second until all balls have been released. When a ball hits the ground, it will bounce back with the same speed…

id=3692">Kindergarten Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 4920   Accepted: 2399 Description In a kindergarten, there are a lot of kids. All girls of the kids know each other and all boys also know each other. In addition t…

Chapter 1. Points and Lines (已看) Chapter 2. Geometry Snippets (已看) Chapter 3. Trigonometry Snippets (已看) Chapter 4. Vector Operations (已看) Chapter 5. Matrix Operations (已看) Chapter 6. Transformations (已看) Chapter 7. Unit Convensions (已看) Chapter 8. M…