Question Link
Q: The dominoes game gives some cards, and which card will be pushed down after the card falls down, and asks for the minimum number of cards to be pushed down so that all cards will go down.
Idea: The strongly connected component of a directed graph. After the point is reduced by Tarjan, find the number of points with a degree of 0, that is, the answer.
Code:
#include
Uva11504-Dominos (Tarjan + contraction point)
Ultraviolet A 11504-Dominos
Question Link
Given a domino directed graph, a maximum of a few pieces can be pushed.
Idea: strongly connected component. After the point is reduced, find the point with a degree of 0 as the answer.
Code:
#include
Ultraviolet A 11504-Dominos (strongly connected component)
High-connectivity components of the uva-1 11504 Dominos
Q: If a domino card has an edge u-> v, it means that u has fallen v automatically. The minimum number of manual push requests is required.
If some cards belong to the same strongly connected component, if any card is pushed down, all cards are pushed down. After the point can be scaled down through strong connectivity, there must be no card of entry level.
Note that this question cannot be use
This document mainly explains the following:
MPLS header structure and the role of each primary field.
How the tagged message is forwarded
Keep the MPLS tag names, as well as their role.
Determines the importance of MPLS MTU in MPLS networks.
In MPLS, they are exchanged
MPLS Multiprotocol Label Switching-Multi-Protocol Label exchange technology is a new technology that uses tags to guide high-speed and efficient data transmission on open communication networks. Its value lies in its ability to introduce the connection mode in a connectionless network. Its main advantage is that it reduces network complexity, is compatible with various mainstream network technologies, and can reduce network costs by 50%, ensure QoS an
Rd and RT (mpls vpn bgp)
Rd (route-distinguisher) is used to identify different VPN instances on the PE device. Its main function is to achieve address multiplexing between VPN instances. It and the IP address constitute a 12byte vpnv4 address space, rd and the route are carried together in the bgp update message and published to the peer end. On the one hand, we need to verify whether the RD function is implemented, whether the PE device can achieve
Mobile data is one of the most promising Telecom businesses. It can meet the needs of various mobile terminal users to access the Internet anytime, anywhere, it can also meet the needs of data and multimedia communication between them. Mobile IP is one of the key technologies to implement mobile data services. It supports mobile terminals with fixed IP addresses to move freely on the Internet and keep communication uninterrupted during the mobile process. Multi-Protocol Label Switching (
With the continuous development of global network facilities, a large part of the network field has recently switched to the use of Multi-Protocol Label Switching (MPLS), which simplifies the virtual private network (VPN) link, implementing service convergence and traffic engineering offers attractive opportunities while minimizing complexity and overhead related to earlier methods.
The role of MPLS
In ear
With the continuous development of global network facilities, a large part of the network field has recently switched to the use of Multi-Protocol Label Switching (MPLS), which simplifies the virtual private network (VPN) link, implementing service convergence and traffic engineering offers attractive opportunities while minimizing complexity and overhead related to earlier methods.
The role of MPLS
In ea
With the continuous development of global network facilities, a large part of the network field has recently switched to the use of Multi-Protocol Label Switching (MPLS), which simplifies the virtual private network (VPN) link, implementing service convergence and traffic engineering offers attractive opportunities while minimizing complexity and overhead related to earlier methods.The role of MPLS In early
Networking requirements:1. Configure the basic information of each vro2. Configure OSPF specifications and change the network type to point-to-point3. All routers run OSPF, RT4 E3/0, RT5 E3/0 network to OSPF, RT1E3/0 re-publish directly to OSPF4. All routers run MPLS, And the Label Distribution Protocol is LDP.5. Run IBGP in RT4 and RT5 and publish E3/1 to BGP.Previous ConfigurationThe IGP configuration is as follows:RT1:Router ospf 1Router-id 1.1.1.1
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Mpls–te:
1, about TE Flow engineering background Knowledge Introduction:
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The int
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1 Overview
MPLS, as a forwarding technology, has been developing for many years. After years of development, the technology proposed at the beginning to improve forwarding efficiency has given it new vigor due to its excellent scalability. As VPN applications, TE and QoS applications based on MPLS technology are constantly deployed on various networks, MPLS has g
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