说明：A message from humans to extraterrestrial intelligence was sent through the Arecibo radio telescope in Puerto Rico on the afternoon of Saturday November 16, 1974. The message consisted of 1679 bits and was meant to be tr <zilewwy> 在 2025-01-31 上传
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说明：For example :
There are 5 soldiers (A B C D E)with level numbers : 2 4 5 6 4;
One method :
C could teach B; B could teach A; So , A B C are eligible to study on the same broomstick.
D could teach E;So D E are eligible t <zilewwy> 在 2025-01-31 上传
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说明：Were Tian Ji lives in nowadays, he will certainly laugh at himself. Even more, were he sitting in the ACM contest right now, he may discover that the horse racing problem can be simply viewed as finding the maximum match <zilewwy> 在 2025-01-31 上传
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说明：Ignatius has just come back school from the 30th ACM/ICPC. Now he has a lot of homework to do. Every teacher gives him a deadline of handing in the homework. If Ignatius hands in the homework after the deadline, the teac <zilewwy> 在 2025-01-31 上传
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说明：The input consists of T test cases. The number of test cases ) (T is given in the first line of the input. Each test case begins with a line containing an integer N , 1<=N<=200 , that represents the number of table <zilewwy> 在 2025-01-31 上传
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说明：The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and the doggie could feel the ground sinking. He realized that the bone was a trap, and he t <zilewwy> 在 2025-01-31 上传
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说明：串口发数据,速度为192000K，寄存器操作方法，测试已成功(Serial port send data, speed is 192000K, register operation method, the test has been successful.) <ljlp> 在 2025-01-31 上传
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说明：C的简易计算器代码，支持括号，优先级等等运算但是不支持散件函数等处等函数(Calculator of C but is not repreciable for the function like sin cos tan) <Versulyn> 在 2025-01-31 上传
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说明：输入三角形顶点的x,y,z坐标，计算三角面的法向量(Input the X, y, Z coordinates of the vertices of the triangle, and calculate the normal vectors of the triangles.) <SRA> 在 2025-01-31 上传
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说明：把彩图转换成灰度图片，可以在人脸识别领域用PCA的方法。(Convert the color map to grayscale image.PCA can be used in face recognition field.) <我是大灰狼> 在 2025-01-31 上传
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