染色问题:相邻不能染同一种颜色 最少需要的颜色的数量=最大团点的数量 #include<bits/stdc++.h> using namespace std; #define N 27 int n; int mp[N][N]; int ans; int alt[N][N]; int Max[N]; bool dfs(int cur,int tot)//cur是s1集合的个数 { ==cur) { if(tot>ans) { ans=tot;return true; } return fa…

Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 14361   Accepted: 7311 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a s…

POJ 1129 Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 14191   Accepted: 7229 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receive…

Channel Allocation Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 13231 Accepted: 6774 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a stron…

题目链接:poj1129 Channel Allocation 题意:要求相邻中继器必须使用不同的频道,求需要使用的频道的最少数目. 题解:就是求图的色数,这里采用求图的色数的近似有效算法——顺序着色算法(实质是一种贪心策略:在给任何一个顶点着色时,采用其邻接顶点中没有使用的,编号最小的颜色). 注:中继器网络是一个平面图,即图中不存在相交的边. 看讨论后发现这组数据,AC代码没过orz: 6 A:BEF B:AC C:BD D:CEF E:ADF F:ADE 正确答案应该是3 : A(1)B(…

Language: Default Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 12367   Accepted: 6325 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that ever…

Channel Allocation Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 20000/10000K (Java/Other) Total Submission(s) : 18   Accepted Submission(s) : 7 Problem Description When a radio station is broadcasting over a very large area, repeaters are u…

Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 13173   Accepted: 6737 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a s…

Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 12334   Accepted: 6307 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a s…

Channel Allocation Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 15546   Accepted: 7871 Description When a radio station is broadcasting over a very large area, repeaters are used to retransmit the signal so that every receiver has a s…