POJ 3020 Antenna Placement (bipartite graph creation training + minimum path coverage)
Antenna Placement
Time Limit:1000 MS
Memory Limit:65536 K
Total Submissions:6692
Accepted:3325
DescriptionThe Global Aerial Research Centre has been allotted the task of building the maximum th generation of mobile phone nets in Sweden. the most striking reason why they got the jo
Antenna Placement
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 6930
Accepted: 3439
DescriptionThe Global aerial Centre have been allotted the task of building the fifth generation of mobile phone nets in swed En. The most striking reason so they got the job, is their discovery of a new, highly noise resistant, antenna. It's called
The main problem: There are N cities, to establish a radio station in these n cities, each radio station can only cover 2 neighboring cities, ask at least how many wireless power stations need to buildProblem-Solving ideas: English topic good pit, looked at half a day.This problem is similar to POJ-2446 chessboard.All cities can be divided into two point sets, then the connection between the radio station to represent the coverage of the relationship.Because all cities have to be covered, so acc
Question:
In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at most two adjacent cities.How many base stations can be placed to ensure that all cities are wireless?
Ideas:
Number each city, create two-way edge, run Hungary, and then the number of cities-matching number/2 is the answer
Assume that each city needs to build a base station, and then how many matches will reduce the number of base stations. Because the
Question link:Http://poj.org/problem? Id = 3020
Antenna placement
Time limit:1000 ms
Memory limit:65536 K
Total submissions:6692
Accepted:3325
DescriptionThe global aerial research centre has been allotted the task of building the maximum th generation of mobile phone nets in Sweden. the most striking reason why they got the job, is their discovery of a new, highly noise resistant,
Antenna placement
Time Limit: 1000 msmemory limit: 65536 K
Total submissions: 6342 accepted: 3131Description
The global aerial research centre has been allotted the task of building the maximum th generation of mobile phone nets in Sweden. the most striking reason why they got the job, is their discovery of a new, highly noise resistant, antenna. it is called 4 dair, and comes in four types. each type ca
× Winding Process
It is a process that combines an antenna and an IC loop to form a module. It takes some time to mount modules one by one on a thin board. Therefore, high costs are not suitable for mass production. However, compared with other manufacturing processes, the tag communication distance is improved.
× Etching ProcessIt is a process of forming an antenna by etching aluminum or copper film on
Reprinted please indicate the source: Thank you
Http://user.qzone.qq.com/289065406/blog/1299322779
Tip: do not be misled by the circle of pictures. You can see clearly that '*' is a city, 'O' is an open space, and the antenna of an elliptical circle must cover the city '*', instead of covering the Open Space
Question:
In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at
The basis of binary matching. You only need to find out a and B.
Search for the four directions of each "*" and record their relationships;
Because we read both a-> B and B-> A, we need to divide it by 2;
#include#includechar str[41][11];bool mat[40
Question:
In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at most two adjacent cities.How many base stations can be placed to ensure that all cities are
An original Mini-game inspired by gold miners and big fish. In fact, this game has been played for two weeks and is only uploaded until now. Some bugs have not been fixed yet. No way. Busy.
Recently, I am engaged in a large-scale webgame with
Black and white coloring and then finding the maximum matching of the Bipartite Graph [cpp]# Include # Include # Include Using namespace std;Const int maxn = 40 + 9;Int n, m;Char a [maxn] [maxn];Struct{Int to, next;} E [maxn * 10*4];Int head [maxn *
Question:
In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at most two adjacent cities.How many base stations can be placed to ensure that all cities are wireless?
Question link: http://poj.org/problem? Id = 3020
First of all, ignore the one that may mislead others (maybe I have poor understanding, or I am misled by a little bit ).
An H * w graph is provided. "*" indicates point of interest, and "O" ignores it.
There are n cities in a rectangular grid. Now all N cities need to be covered in wireless networks. For any base station, it can overwrite any adjacent two grids. So if we build a base station together, we can make all the cities covered and use the
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