C#城市线路图的纯算法以及附带求极权值
常用的数据结构写出来 纯属于算法 性方面还有待提高 时间复杂度最坏情况下O(2^n) 最优：O(n^2)
线路图为双向 带有权值 比如A-B距离是5000km 那么B-A有可能不是5000km 所以我在LoadData方法时候没做交换变量直接存放在集合里面
以起点递归查找下一连接点并返回当作起点节点查找 代码虽然有些乱 本想调整 ！
static List
static int isend = 1;
static List
static void Main(string[] args)
{
string begin = "重庆";
string end = "厦门";
LoadData();
Program pl = new Program();
List
beginlist.Add(begin);
pl.GetF(beginlist);
foreach (string a in fresult)
Console.WriteLine(a);
Console.WriteLine(fresult.Count);
//main data end
List
string temp = "";
foreach (string f in fresult)
{
if (f.IndexOf(end) > -1)
{
temp = f.Substring(0, f.LastIndexOf(end) + end.Length);
if (searchlist.Contains(temp) == false)
searchlist.Add(temp);
}
}
Console.WriteLine(begin + "------------->" + end + ":");
foreach (string a in searchlist)
Console.WriteLine(a);
Console.WriteLine(searchlist.Count);
//search data A to B
string a1 = "权最大为:" + GetMaxQuk(searchlist);
Console.WriteLine(a1);
a1 = "权最小为:" + GetMinQuk(searchlist);
Console.WriteLine(a1);
Console.ReadKey();
}
取最大的权值数据
private static string GetMaxQuk(List
{
string resultsrt = "";
string[] nagearry = null;
int val, maxval = 0;
for (int s = 0; s < nage.Count; s++)
{
nagearry = nage[s].Split('-');//s个数组
val = GetVal(nagearry);
if (val > maxval)
{
maxval = val;
resultsrt = nage[s] + ":" + val;
}
nagearry = null;
}
return resultsrt;
}
取最小的权值数据
private static string GetMinQuk(List
{
string resultsrt = "";
string[] nagearry = null;
int val, minval = int.MaxValue;
for (int s = 0; s < nage.Count; s++)
{
nagearry = nage[s].Split('-');//s个数组
val = GetVal(nagearry);
if (val < minval)
{
minval = val;
resultsrt = nage[s] + ":" + val;
}
nagearry = null;
}
return resultsrt;
}
具体取权值的方法
private static int GetVal(string[] findarry)
{
int val = 0;
for (int ss = 0; ss < findarry.Length - 1; ss = ss + 1)
{
foreach (string[] aa in maindata)
{
if (aa[0] == findarry[ss] && aa[1] == findarry[ss + 1])
{
val += Convert.ToInt32(aa[2]);
break;
}
}
}
return val;
}
List
{
//此处省略几十行代码 需要完整代码请联系an
if (isend == 0)
return GetF(returnlist);
else
return null;
}
加载绑定数据
static void LoadData()
{
List
string[] arry = null;
backlist = new List
arry = new string[3];
arry[0] = "重庆";
arry[1] = "北京";
arry[2] = "3000";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "重庆";
arry[1] = "广州";
arry[2] = "2500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "北京";
arry[1] = "重庆";
arry[2] = "3000";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "北京";
arry[1] = "广州";
arry[2] = "3100";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "北京";
arry[1] = "长沙";
arry[2] = "2800";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "长沙";
arry[1] = "北京";
arry[2] = "2800";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "长沙";
arry[1] = "广州";
arry[2] = "1500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "长沙";
arry[1] = "厦门";
arry[2] = "800";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "广州";
arry[1] = "重庆";
arry[2] = "2500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "广州";
arry[1] = "北京";
arry[2] = "3100";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "广州";
arry[1] = "长沙";
arry[2] = "1500";
backlist.Add(arry);
arry = null;
maindata = backlist;
arry = new string[3];
arry[0] = "厦门";
arry[1] = "长沙";
arry[2] = "800";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "厦门";
arry[1] = "广州";
arry[2] = "500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "广州";
arry[1] = "厦门";
arry[2] = "500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "广州";
arry[1] = "云南";
arry[2] = "3200";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "云南";
arry[1] = "广州";
arry[2] = "3200";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "云南";
arry[1] = "长沙";
arry[2] = "3500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "长沙";
arry[1] = "云南";
arry[2] = "3500";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "云南";
arry[1] = "厦门";
arry[2] = "5400";
backlist.Add(arry);
arry = null;
arry = new string[3];
arry[0] = "厦门";
arry[1] = "云南";
arry[2] = "5400";
backlist.Add(arry);
arry = null;
}
完整代码信息异步同城信息港