POJ 1160: Post Office classic DP
Post Office
Time Limit:1000 MS
Memory Limit:10000 K
Total Submissions:17168
Accepted:9270
DescriptionThere is a straight highway with ages alongside the highway. the highway is represented as an integer axis, and the position of each village is identified with a single integer coordinate. there are no two ages in the same position. the distance between two positions is the absolute value of the difference of their integer co
:
Assume that the database administrator has created a public synonym:
Create public synonym sales FORjward. sales_data;
After the public synonym is created, youcan query the table SALES_DATA with a simple SQL statement:
Your statement will be simplified:
SELECT * FROM sales;
Notice that the public synonym SALES hidesthe name of the table SALES_DATA and the name of the schema that contains thetable.
2. create synonym create Synonyms
1. syntax structure:
2. Prerequisites:
To create a priva
Post Office
Time limit:1000 ms
Memory limit:10000 K
Total submissions:15412
Accepted:8351
DescriptionThere is a straight highway with ages alongside the highway. the highway is represented as an integer axis, and the position of each village is identified with a single integer coordinate. there are no two ages in the same position. the distance between two positions is the absolute value of the difference of their integer coordinates.
Post
With the acceleration of modern technology, each department of some large and medium-sized enterprises is equipped with computers, and some are even more than one. To facilitate data transmission and speed up work efficiency, enterprises have set up local networks. However, due to the long distance between office buildings, it is inevitable that wiring will be inconvenient when a LAN is set up. At the same time, the amount of work will be very large and the cost and technical content will be ver
Title: poj1_1post office click to open the link Question: N coordinates in a straight line are given to indicate the location of the village. Then, P post offices should be built on it. The villagers should first select the nearest post office, what is the minimum distance from all villages to the post office? Category: interval DP Analysis: For any village, there are only two options: Create a post office here or not, we can pre-process any
Post OfficeTime Limit: 1000 MS Memory Limit: 10000 KTotal Submissions: 14051 Accepted: 7576
Description
There is a straight highway with ages alongside the highway. the highway is represented as an integer axis, and the position of each village is identified with a single integer coordinate. there are no two ages in the same position. the distance between two positions is the absolute value of the difference of their integer coordinates.
Post offices
Some enterprises, due to their operating characteristics, have branch offices in different regions in China or abroad and want to exchange information through VPN. However, due to China's "South China Telecom North China Netcom" situation, offices located in the South often use telecommunications lines, while offices located in the North use Netcom lines, so the
Post OfficeTime limit:1000ms Memory limit:10000kDescriptionThere is a straight highway with villages alongside the highway. The highway is represented as a integer axis, and the position of each village are identified with a single integer Coordi Nate. There is no villages in the same position. The distance between and positions is the absolute value of the difference of the their integer coordinates.Post Offices is built in some and not necessarily a
This is some ideas about easyjf open source fund that I wrote during my discussions on preparations for easyjf open source fund today. I welcome some suggestions from csdn users, is this assumption true when the open-source community in China is not yet mature?
Easyjf open source fund ideas
Since easyjf began to set up offices or laboratories in the local area and involved some funds to hold various technical exchanges, academic discussions, and oth
Detailed explanation of VPN technology (on)
Lu Xiaopo
Introduction
A virtual private network enables the connection of components and resources across different networks. Virtual private networks can use the Internet or other public Internet infrastructure to create tunnels for users and provide the same security and functionality guarantees as private networks. (Figure 1)
A virtual private network allows a remote communication party, salesperson, or Enterprise branch office to connect to t
concentrated in these three places, and the high-end business is placed here. Because of the need to reduce costs, as a stronghold to form several groups, Beijing's low-end business in Tianjin. Shanghai and Wuxi also have such a relationship. Wuhan is the central region, can be used as a soft and dynamic training base, the transfer of talent to many business points. and Dalian to Japan outsourcing is very good, good outsourcing companies are in Dalian, soft power in this also has a large delive
The deployment of DC in core mode has been shared with you in the deployment of domain controllers in core mode [deploying Windows Server 2008 series six] for enterprise, and if you have chosen 2008 domain environments as the infrastructure for centralized IT resource management, congratulations, Because your company's competitiveness will certainly rise, especially in IT environment management here is very competitive. With the expansion of your business, product sales have also increased, and
Security Case study: Under attack
Introduction
A large fictional banking enterprise is divided into several departments, of which two are the external banking and internal support departments respectively. All local offices belong to the external banking unit. All support activities, such as marketing, sales, and IT, belong to the internal support department. To make the business profitable, the two departments need to work closely together.
Not long
帝国 第一滴血 霍比特人 速度与激情Sort (sort, reverse)The sort method is to rearrange the list in a specific order, by default, from small to large, and the parameter reverse=true can be changed to reverse, from large to small.The reverse method is to reverse the list.Nested 1 of the list. List nestingSimilar to the nesting of while loops, the list also supports nestedA list of elements is a list, then this is the list of nested schoolNames = [[‘北京大学‘,‘清华大学‘], [‘南开大学‘,‘天津大学‘,‘天津师范
VPN technology Detailed (i)
Lu Xiaopo
Introduction
A virtual private network enables the connection of components and resources across different networks. Virtual private networks can use the Internet or other public Internet infrastructure to create tunnels for users and provide the same security and functionality guarantees as private networks. (Figure 1)
A virtual private network allows a remote communication party, salesperson, or Enterprise branch office to connect to the enterprise server
of each user is called the local loop in the telephony industry, and if all the local loops in the world are connected end to end, the length is equal to 1000 times the length of the moon.
There was a time when 80 of the company's assets were copper wire in the local circuit. At that time, the company was actually the world's largest copper mine. Fortunately, such facts are not widely known in the investment circle. If someone knows, some market troublemakers may buy the company, stop all tele
The appearance of "one machine" brings the efficient and quick office way for the enterprise. In today's network era, the new form of "network integration machine" will bring us what kind of new office form? Cisco ISR 881 is a multi-service router (Cisco 881) can be called a "network integration machine", he integrated the router, firewall, IPS, IPSec VPN, VoIP and wireless connection, and many other practical network functions greatly expand the user's network applications. It provides a new wo
SeanMichaelKerner interviewed CanonicalCTOMattZimmerman and talked about how the Canonical team distributed around the world works collaboratively and what tools were used. Canonical has offices in multiple countries, but the vast majority of engineers are not in local offices. Even so, Zimmerman said, he still regularly communicates face-to-face with employees on a quarterly basis and also uses common comm
communication, and give some suggestions to enterprises in terms of purchasing group telephone switches. There are various group telephone systems on the market, analog, digital, and network IP-based products. Which product is truly suitable for the enterprise's own needs? The following items must be considered:
Cost factors: financial conditions, number of internal phone calls within the enterprise, overall cost, whether there are too many long-distance flights in the field, whether there are
Post Office
Time limit:1000 ms
Memory limit:10000 K
Total submissions:14051
Accepted:7576
DescriptionThere is a straight highway with ages alongside the highway. the highway is represented as an integer axis, and the position of each village is identified with a single integer coordinate. there are no two ages in the same position. the distance
Two positions is the absolute value of the difference of their integer coordinates.
Post
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