公式推导题,G(0) = 1,G(1) = t,给出一个 i 和 G(i),要求求出G(j)的值: G(0) = 0*t + 1 G(1) = 1*t + 0; 观察t的系数和常数值可以知道二者都遵循斐波那契的规律,设系数值为Y(n),常数值为X(n); G(2) = 1*t + 1; Y(0) = 0,Y(1) = 1; G(3) = 2*t + 1; X(0) = 1, X(1) = 0; G(4) = 3*t + 2; 这样就能求出答案了,最后的t满足要求就有解 G(5) = 5*t +…

Gibonacci number Time Limit: 2 Seconds      Memory Limit: 65536 KB In mathematical terms, the normal sequence F(n) of Fibonacci numbers is defined by the recurrence relation F(n)=F(n-1)+F(n-2) with seed values F(0)=1, F(1)=1 In this Gibonacci numbers…

本来已经关上电脑了 但还是想打开电脑纪念一下这充实的一天…… 第一节高数课讲新课级数 讲完一个知识点 想问问女票今天咋又没来上课…… 突然发现院长问我自费去不去省赛…… !!! 当然是去啊! ……虽然是自费 ……马上联系了两个和我一样的小伙伴组了个队 ……想队名的时候 想了一个异常棒的队名 ……我们经历过绝望 ……中午取完快递 买了碗泡面回寝室把报名表填了 ……下午去买的词典 ……上完课立刻去机房参加最后一场训练赛 ……无论如何 即使是自费去 也要好好打 全力以赴! 接下来讲题…… 一开始的思路…

GCD Expectation Time Limit: 4 Seconds                                     Memory Limit: 262144 KB                             Edward has a set of n integers {a1, a2,...,an}. He randomly picks a nonempty subset {x1, x2,…,xm} (each nonempty subset has…

Big Number Time Limit: 10 Seconds      Memory Limit: 32768 KB In many applications very large integers numbers are required. Some of these applications are using keys for secure transmission of data, encryption, etc. In this problem you are given a n…

关于不同进制数之间转换的数学推导 涉及范围:正整数范围内二进制(Binary),八进制(Octonary),十进制(Decimal),十六进制(hexadecimal)之间的转换 数的进制有多种,比如两双袜子为一双就采用二进制,平常的一周七天就采用七进制,每小时有六十分钟就采用六十进制.在计算机科学中我们经常用的有二进制,八进制,十进制,十六进制.计算机只能识别0和1组成的数字,但由于当一个数字比较大的时候,二进制的长度将变得非常长,对于人来说可读性非常差,而进制越大,那么数据显示的长度便越短,…

UVA - 10014 Simple calculations Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu id=19100" style="color:blue">Submit Status Description  Simple calculations  id=19100" style="color:blue">The Pro…

Galaxy Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 556    Accepted Submission(s): 127 Special Judge Problem Description Good news for us: to release the financial pressure, the government…

Friend HDU - 1719 Friend number are defined recursively as follows. (1) numbers 1 and 2 are friend number; (2) if a and b are friend numbers, so is ab+a+b; (3) only the numbers defined in (1) and (2) are friend number. Now your task is to judge wheth…

上篇记录了一些决策树算法,这篇是借OC-SVM填回SMO在SVM中的数学推导这个坑. 参考文献: http://research.microsoft.com/pubs/69644/tr-98-14.pdf https://inst.eecs.berkeley.edu/~ee227a/fa10/login/l_dual_strong.html https://inst.eecs.berkeley.edu/~ee127a/book/login/l_sdual_slater.html http://w…