Once you eliminate all the other factors,the only thing remaining must be the truth. 一旦你排除了杂因,剩下的一定是真相.--<神探夏洛克>…

The Fourier Transform will decompose an image into its sinus and cosines components. In other words, it will transform an image from its spatial domain to its frequency domain. The idea is that any function may be approximated exactly with the sum of…

 Krypton Factor  You have been employed by the organisers of a Super Krypton Factor Contest in which contestants have very high mental and physical abilities. In one section of the contest the contestants are tested on their ability to recall a seque…

NOTE Nulling out object references should be the exception rather than the norm. Another common source of memory leaks is caches. Once you put an object reference into a cache, it's easy to forget that it's there and leave it in the cache long after…

Note Eliminate every unchecked warning that you can. Set<Lark> exaltation = new HashSet(); The compiler will gently remind you what you did wrong: Venery.java:4: warning: [unchecked] unchecked conversion found : HashSet, required: Set<Lark> Se…

7.7 Design an algorithm to find the kth number such that the only prime factors are 3,5, and 7. 这道题跟之前LeetCode的那道Ugly Number II 丑陋数之二基本没有啥区别,具体讲解可参见那篇,代码如下: class Solution { public: int getKthMagicNumber(int k) { vector<, ); , i5 = , i7 = ; while (re…

Eliminate the Conflict Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1315    Accepted Submission(s): 563 Problem Description Conflicts are everywhere in the world, from the young to the elder…

Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3*5*6*7, where 5, 6, and 7 are the three consecutive numbers. Now given any positive N, you are supposed to find the maxim…

Talk is cheap, I show you the code 第一章的作业主要是关于PGM的因子操作.实际上,因子是整个概率图的核心.对于有向图而言,因子对应的是CPD(条件分布):对无向图而言,因子对应的是势函数.总而言之,因子是一个映射,将随机变量空间映射到实数空间.因子表现的是对变量之间关系的一种设计.每个因子都编码了一定的信息. 因子的数据结构: phi = struct('var', [3 1 2], 'card', [2 2 2], 'val', ones(1, 8)); 在…

原题下载:http://icpc.baylor.edu/download/worldfinals/problems/icpc2013.pdf 题目翻译: 问题描述 一个最基本的算数法则就是大于1的整数都能用1个或多个素数相乘的形式表示出来.当然,可以安排出多种的质因子排列方案,例如:10=2*5=5*2 20=5*2*2=2*5*2=2*2*5 让我们用f(k)表示k的质因子排列方案数,如f(10)=2,f(20)=3. 给你一个正整数n,至少有一个k使得f(k)=n,我们想知道最小的k是多少.…