记录一些思考的过程。

【思路】所有的坠子和杠杆可以看做节点，构成一棵二叉树，暴力枚举二叉树的组成方式，再对宽度进行计算，就可以得到答案。暴力枚举时需要用到回溯的方式。【代码】#include#include#include#includeusing namespace std;const int MAXN=15;const double EPS=1e-9;double room,a

Pocket CubeTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 866    Accepted Submission(s): 328Problem DescriptionThe Pocket Cube,

cube cube cubeTime Limit: 6000/3000 MS (Java/Others)    Memory Limit: 327680/327680 K (Java/Others)Total Submission(s): 9327    Accepted Submission(s): 130Problem DescriptionRubick has

Floating-point numbers arerepresented differently in computers than integers. That is why a 32-bitfloating-point number can represent values in the magnitude of 1038whilea 32-bit integer can only re

A children’sboard game consists of a square array of dots that contains lines connectingsome of the pairs of adjacent dots. One part of the game requires that theplayers count the number of squares of

Alexis administrator of IP networks. His clients have a bunch of individual IPaddresses and he decided to group all those IP addresses into the smallestpossible IP network.Each IP addressis a 4-byte

To enable homebuyers to estimate thecost of flood insurance, a real-estate firm provides clients with the elevationof each 10-meter by 10-meter square of land in regions where homes may bepurchased. W

Hidden Code题目连接：http://codeforces.com/gym/100015/attachmentsDescriptionIt's time to put your hacking skills to the test! You’ve been called upon to help crack enemy codes in thec

PinballTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 574    Accepted Submission(s): 249 Problem DescriptionThere is a slope on the 2D...