Divide and Conquer (Divide and Conquer) algorithm: The problem can be decomposed into sub-problems, each problem can be solved independently, from the solution of sub-problem can build the original problem.Divide: Intermediate points, random points, odd even points, and so on, the problem is decomposed into independent sub-problemsConquer: The solution of sub-problem can be solved by itself, and the final solution of the original problem is constructe
"Summary catalogue of common interview questions >>>"
Algorithm is a programmer must be a skill, often appear in the interview, the following summed up the interview in the common algorithms, these algorithms programmers should keep in mind, to be very skilled.
Insert Sort Algorithm
Principle: The array is divided into unordered area and ordered area of two regions, and then the first element of the unord
Immune algorithm is a new intelligent search algorithm, which is inspired by the biological immune system, and it is a heuristic stochastic search algorithm combining deterministic and stochastic selection with the ability of "exploration" and "mining".
The main steps of the algorithm:
(1) Antigen recognition and init
Summary of main recommendation system algorithm and YouTube Advanced Learning recommendation algorithm example by Zhuzhibosmith July 09, 2017 17:00 Nowadays, many companies use large data to make super related recommendations, and to increase revenue. In the massive recommendation algorithm, data scientists need to choose the best
The positioning operation of a string is usually called the pattern matching of strings, which is one of the most important operations in various processing systems.The simplest pattern matching algorithm is the backtracking method, that is, the pattern string matches one character of the main string, and when the pattern string does not match the main string, the main string goes back to the next position where the pattern string matches, and the pat
Tag-Purge (Mark-sweep) algorithm
The first practical and perfect garbage collection algorithm was proposed in 1960 and successfully applied to the Lisp language's tag-purge algorithm by people such as J. McCarthy. Still take the napkin as an example, the tag-purge algorithm is executed as follows:
In the course of
"ahead", that is, when the error approaches zero, the effect of the suppression error should be zero. That is to say, only the introduction of "proportional" items in the controller is often not enough, the role of the proportional term is only the amplitude of the amplification error, and the current need to increase is "differential term", it can predict the trend of error changes, so that the controller with proportional + differential, can advance the control of the suppression error equal
The basic concepts of
learning target comprehension algorithm, difference between program and data structure and the basic method of mastering algorithm representation seasonal algorithm complexity concept mastering the asymptotic behavior of the complexity of the algorithm the asymptotic order method of the solution
Absrtact: Using the genetic algorithm to solve the 0-1 programming problem, the problem of using traditional optimization method to solve the long search time is solved. However, because the kernel algorithm of genetic algorithm contains random search method, the "optimal solution" is not necessarily optimal, that is to say, in a great problem, the optimal soluti
5.1 Probability count. Not too clear test instructions.
5.2 (Find an unordered array) the subject will analyze three algorithms that look for a value x in an unordered array a containing n elements.
Consider the following stochastic strategy: randomly pick a subscript i, if a[i]=x, then terminate, otherwise, continue to pick a a new random subscript, repeat randomly pick subscript, until we find a subscript j, make a[j]=x, or until we have checked every element in a, note, Each time we pick from
A simple and easy-to-learn machine learning algorithm--EM algorithmThe problem of parameter estimation in machine learningIn the previous blog post, such as the "easy-to-learn machine learning algorithm--logistic regression", the maximum likelihood function is used to estimate the parameters of the model, in a nutshell, the logistic regression problem belongs to the supervised learning problem in a series o
I. PrefaceSince the realization of the importance of the algorithm, LZ to the algorithm is love and hate, Love is because the algorithm is really interesting to learn,If you have ever had an affair with mathematics, you will naturally have an affection for the algorithm after contacting the
Maximum sub-sequence and algorithm analysis, sub-sequence algorithm analysis
Problem Description: Given n integer sequence {a1,a2,..., an}, function f (i,j) =max{0,σak} (k: Continuous from I to j);
The problem is the maximum value of the continuous sub-columns, if the maximum is negative, take 0, such as 8 number sequence { -1,2,-3,4,-2,5, -8,3}, the maximum subsequence and the 4+ (-2) +5=7.
This problem h
Subject:Algorithm and algorithm design requirements
Purpose:Understanding the definition and features of algorithms and the requirements of Algorithm Design
Teaching focus:Algorithm features and design requirements
Teaching difficulties:Algorithm Design Requirements
Course content:
I. Definition and features of Algorithms
1. Definition:
Ispass (INT num [4] [4])
{Int I, J;For (I = 0; I
For (j
Previous wordsThis article describes the complexity of the algorithm in detailLarge O notationLarge o notation is a description of the performance and complexity of the algorithm. The following types of functions are often encountered when parsing an algorithmsymbol nameO (1) constant O (log (n)) logarithm O ( (log (n)) c) logarithmic polynomial O (n) Linear O ( n2)
is large enough, you can use a strong reference directly as a cache, while controllability is higher. Thus, they are commonly used in the caching of desktop application systems.
Here's a basic garbage collection algorithm. The garbage collection algorithm can be divided from different angles.
according to the basic recycling strategy
reference count (Reference counting):
The older collection
[Java]Package Ceshi;Public class biSearch {/*** @ Param args*//*Semi-query-when the table is an ordered table, you can use semi-query;Basic Idea: in an ordered table, take the intermediate element as the comparison object. If the given value K is the same as the intermediate record keyword, the search is successful;If the given value K is less than the keyword of the intermediate record, continue searching in the left half of the table;If the given value K is greater than the keyword of the inte
The last article talked about the quick sort, this article mainly talks about heap sort 2.5, heap sort algorithm
1, what is the heapThe heap is a tree structure, more accurately a complete binary tree. And the data for each non-leaf node is greater than or equal to (less than or equal to) its left and right child nodes, so that the root node of the heap structure is the maximum (minimum), and the heap is called the maximum heap (the smallest heap). So
OutputFor each case, output a single integer and the maximum rate at which water may emptied from the pond.
Sample Input5 41 2 401 4 202 4 202 3 303 4 10
Sample Output50
Template problem, to understand the reverse side of the addition (to provide the opportunity to regret)Reference Blog: http://www.cnblogs.com/zsboy/archive/2013/01/27/2878810.html
EK algorithm:Each augmentation is through the BFS, through Dfs can only find a routeAnd Dinic Dfs is looking for a number of routes, relatively fast
SPFA Algorithm
definition
Inventor: Dengfanding
Time: 1994
Time complexity O (e)
Principle: A FIFO queue, an array d that holds the shortest distance.
When initializing: There is only one source point in the queue. That is, the starting point itself. The value in D is the maximum value except that the starting point has its own distance of 0.
Queue={v0},d={0,max,max,max...max}, then the VO is taken out of the value of Max at the distance from the J
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