optimal outsource

Optimal Algorithm for de-duplication of data in generic sets, algorithm set I am responsible for O M of the air ticket travel Analysis Report project. The data required for the analysis report (order data and basic dimension data) is extracted from the Business Database. Here, there is a synchronization program for user account data. Today, I checked the online log and found that the synchronization program encountered an exception: An exception occu

1. Problem profiling: Set S = {x1, x2, ·, xn} to an ordered set, and x1, x2 ,···, xn indicates the Binary Search Tree of an ordered set. It uses the vertex of a binary tree to store elements in an ordered set and has the following properties: element x stored in each vertex is greater than the element stored in any vertex in the left subtree and less than the element stored in any vertex in the right subtree. The leaf vertices in a binary tree are the open intervals of shapes such as (xi, xi + 1

composite, prime[j] for prime numbers exactly in accordance with the second kind of composite, all the second kind of composite will be marked OK, we now know that the algorithm will be all composite marked out, then it is not repeated tag? Depending on position 3 because any one compositeaCan be broken into a prime number smaller than it.bMultiplied by a composite smaller than itC(emphasizing "smaller than it") so inIa, there must have been a time when the point wasIEqualsCAndPrime[j]Equalsb,

Article Title: optimal inode size setting. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. How big is inode size? Some people say that if there are many small archives, it would be better to use 1024 bytes. 　　 This thinking principle does not seem very cautious. How much is called "more? I think we need a little qu

connection to home users, its management wants to Make the operation a good investment. So it wants-buy such a set of cables, that cables meancost} is minimal possible.That's, if the company buys K cables of the total cost C, it wants to minimize the value of C/K.InputThere is several test cases in the input. the first line of all case containsN andm(2 ,1 ). Nextmlines describe cables~---each cable are described with three integer numbers:servers it connects and the cost of the Cable. cost of e

+ (b.length) ^2, which is the charm of the algorithm.On the Internet and some data, there is a heap sorting to find the two array of the same elements, the time complexity of N (log2n) around, the sense of time complexity should be the lowest bar.As for the use of hashmap,hashset to heavy, I feel that these sets of internal should also use a certain algorithm bar, feel or write their own algorithm can calculate the time complexity is better, the performance of a calculation will know, if a small

^ (n/2-1) -3:n is even. Below is a list of the steps to move 6 plates:N 1 2 3 4 5 6F (N) 1 3 5 9 13 21Here we have seen that our design algorithms have been almost identical to the classic Hanoi algorithm, even so symmetrical and harmonious! Based on this we can even generalize to the case of M (m≥3) pillars to get the optimal solution we want, assuming that the pillars are numbered in three-to-one ... The M algorithm theme framework flow should be as

https://oj.leetcode.com/problems/next-permutation/My solution is not very good, is O (n^2), this in the STL implementation should be O (n). But my method is relatively simple.The idea is to first find a left boundary L, which needs to be swapped with an element behind it to make the sequence grow. Then the parts in front of L do not change. The back part is as small as possible.This r exchange with L needs to meet the following two conditions:1) a[r]>a[l], the exchange must make the sequence lar

This article mainly introduces the best binary lookup tree algorithm in Ruby, this paper gives the implementation code directly, the need for friends can refer to the following The pseudo code in the introduction of the algorithm is rewritten, coupled with the constructor of the solution of the first question in the introductory lesson practice. The code is as follows: #encoding: Utf-8 =begin Author:xu Jin Date:nov 11, 2012 Optimal Binary Searc

The pseudo code in the introduction of the algorithm is rewritten, coupled with the constructor of the solution of the first question in the introductory lesson practice. Copy Code code as follows: #encoding: Utf-8 =begin Author:xu Jin Date:nov 11, 2012 Optimal Binary Search Tree To find by using editdistance algorithm Refer to Example output: "K2 is the root of the tree." "K1 is the ' left child of K2." "D0 is the ' left child of

Programmer's Code interview Guide-string problem: C + + language implementation The following programs run the environment: vc6++See left Teacher's book: Programmer Code Interview Guide: it name enterprise algorithm and data structure of the optimal solution, is the Java implementation, in order to brush the problem, but the position is C/s + +, the following is my use of C + + implementation of the code to introduce a slightly simpler, later to fill

The company's Web site access more and more large, MySQL naturally become a bottleneck, so recently I have been studying MySQL optimization, the first natural thought is the MySQL system parameters optimization, as a large number of visits to the Web site (more than 200,000 times a day) of the database system, can not expect MySQL The default system parameters allow MySQL to run very smoothly. The following article is mainly about the MySQL server optimization of the timing of the operation of t

According to this problem, we can summarize the method of "skipping" a node in dealing with the network flow problem (skipping refers to the need to occupy a node but does not occupy its traffic): 1.floyd to get the global optimal path before the map directly skip. 2. The a-a1,a-a1 is the actual flow through the point, and the same traffic flows from the A1. +oo flows into the a,a->b1 and needs to skip the traffic. Code: POJ 2112//sep9 #include

Introduction to algorithms --------------- optimal binary search tree Given an ordered sequence consisting of n different keywords K = {k1 The probability that each keyword and virtual key are searched can determine the expected price of one search in a given binary search tree T. Set the actual cost of a search to the number of nodes to be checked. That is, add 1 to the depth of the nodes found in the T search. Therefore, the expected price for

Problem: Independent task optimal scheduling, also known as dual-Machine Scheduling Problem: Two processors A and B are used to process n jobs. Set the time required for the I job to be handed over to machine A for processing as a [I]. If machine B processes the job, the time required is B [I]. Currently, each job must be processed by only one machine, and each machine cannot process two jobs at the same time. Design a dynamic planning algorithm so th

----- Edit by ZhuSenlin HDU I have discussed in detail the full backpack problem in my blog "backpack problem-" full backpack "details and implementation (including how to solve the specific backpack items, at the same time, in the blog "backpack problem-" 01 backpack "Optimal Solution Total Number Analysis and Implementation", we also summarized the implementation of the 01 backpack optimal solution total

1. Description Given an ordered sequence of k={k1 2. Analysis (1) Optimal substructure A subtree of an optimal binary tree must contain a continuous range of keywords ki~kj,1 If an optimal binary lookup tree T has a subtree containing the keyword ki~kj t ', then T ' is also an optimal search tree, which can be proved

Configure The Linux bond configuration: Configure NIC eth0 The following commands are used: Cat/etc/sysconfig/network-scripts/ifcfg-Eth0device=Eth0bootproto=Noneonboot=Yesuserctl=Nomaster=Bond0slave=Yes configure NIC eth1 the following commands are used: Cat/etc/sysconfig/network-scripts/ifcfg-Eth1device=Eth1bootproto=Noneonboot=Yesuserctl=Nomaster=Bond0slave=Yes configure bond0 using the following commands: DEVICE=bond0ipaddr=192.168.1.2NETMASK=255.255.255.0GATEWAY=192.168.1.1Onboot=Yestype=Eth

will follow the introduction of the cow, the RGB to YCBCR conversion algorithm to do to summarize.Y = 0.299R + 0.587G + 0.114BU = -0.147r-0.289g + 0.436BV = 0.615r-0.515g-0.100b#deinfe SIZE 256#define XSIZE 640#define YSIZE 480#define IMGSIZE Xsize * ysizetypedef struct RGB{unsigned char R;unsigned char g;unsigned char b;}rgb;struct RGB in[imgsize]; Raw data that needs to be computedunsigned char out[imgsize * 3]; Results after the calculationunsigned short y_r[size],y_g[size],y_b[size],u_r[siz

348-optimal Array Multiplication Sequence Time limit:3.000 seconds Http://uva.onlinejudge.org/index.php?option=com_onlinejudgeItemid=8category=24page=show_problem problem=284 Memory Search: dp[a][b] = max (Dp[a][b], Dp[a][i] + dp[i + 1][b] + x[a] * y[i] * y[b]) Complete code: /*0.089s*/#include See more highlights of this column: http://www.bianceng.cnhttp://www.bianceng.cn/Programming/sjjg/