来只 水排序谜题启发式搜索方法_水排序解法小程序-CSDN博客
大神的C++语言转换成C# 语言，更多的请看原作者，这里直接贴C#代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApp2
{
class Program
{
private const int NC = 12;
private const int SIZE = 4;
private static readonly List<string> vc = new List<string> { "黄色", "绿色", "翠绿", "青色", "蓝色", "紫色", "棕色", "橙色", "红色", "灰蓝", "褐色", "粉色" };
private static List<List<int>> vm = new List<List<int>>();
private static int[] avail = new int[NC];
private static Dictionary<List<List<int>>, int> visit = new Dictionary<List<List<int>>, int>(new ListComparer());
static void Main(string[] args)
{
Init();
Dfs(0);
OutVm();
Console.ReadKey();
}
private static void OutMap()
{
for (int i = 0; i < vc.Count; i++)
{
Console.WriteLine(i + " " + vc[i] + " ");
}
}
private static void Input()
{
int a;
Console.WriteLine("\n输入总试管数目");
a = int.Parse(Console.ReadLine());
vm = new List<List<int>>(new List<int>[a]);
Console.WriteLine("依次输入各试管内颜色，从上往下，空的用-1补足");
for (int i = 0; i < vm.Count; i++)
{
vm[i] = new List<int>();
//for (int j = SIZE - 1; j >= 0; j--)
//{
string xx = Console.ReadLine().ToString();
string[] xxs = xx.Split(' ');
for (int k = 0; k < xxs.Length; k++)
{
a = int.Parse(xxs[k].ToString());
if (a == -1) continue;
vm[i].Insert(0, a);
avail[a]++;
}
//}
}
}
private static bool Check()
{
for (int i = 0; i < NC; i++) if (avail[i] != 0 && avail[i] != SIZE) return false;
return true;
}
private static void Init()
{
OutMap();
do
{
Input();
} while (!Check());
}
private static bool OneCol(List<int> vi)
{
for (int i = 1; i < vi.Count; i++)
{
if (vi[i] != vi[i - 1])
{
return false;
}
}
return true;
}
private static bool End()
{
return vm.All(vi => OneCol(vi));
}
private static bool CanPour(int i, int j)
{
if (i == j) return false;
int si = vm[i].Count, sj = vm[j].Count;
if (si == 0 || sj == SIZE) return false;
if (sj == 0)
{
return !OneCol(vm[i]);
}
int ci = vm[i][si - 1], cj = vm[j][sj - 1];
if (ci != cj) return false;
int num = 0;
for (int k = si - 1; k >= 0; k--) if (vm[i][k] == ci) num++;
else break;
return sj + num <= SIZE;
}
private static int Pour(int i, int j)
{
int x = 0;
while (CanPour(i, j))
{
int it = vm[i].Count - 1;
vm[j].Add(vm[i][it]);
vm[i].RemoveAt(it);
x++;
}
return x;
}
private static void PourF(int i, int j, int num)
{
while (num-- > 0)
{
int it = vm[i].Count - 1;
vm[j].Add(vm[i][it]);
vm[i].RemoveAt(it);
}
}
private static bool Dfs(int deep)
{
if (visit.ContainsKey(vm)) return false;
visit[vm] = 1;
if (End() || deep > 40)
{
return true;
}
for (int i = 0; i < vm.Count; i++)
{
for (int j = 0; j < vm.Count; j++)
{
if (!CanPour(i, j)) continue;
int x = Pour(i, j);
if (Dfs(deep + 1))
{
Console.WriteLine("\ndeep = " + deep + " from " + (i + 1) + " to " + (j + 1));
return true;
}
PourF(j, i, x);
}
}
return false;
}
private static void OutVm()
{
Console.WriteLine();
foreach (var vi in vm)
{
int si = vi.Count;
for (int i = SIZE - 1; i >= 0; i--)
{
if (i >= si) Console.Write("-1 ");
else Console.Write(vi[i] + " ");
}
Console.WriteLine();
}
}
//public static void Main()
//{
// Init();
// Dfs(0);
// OutVm();
//}
private class ListComparer : IEqualityComparer<List<List<int>>>
{
public bool Equals(List<List<int>> x, List<List<int>> y)
{
return x.SequenceEqual(y, new SequenceComparer<int>());
}
public int GetHashCode(List<List<int>> obj)
{
int hash = 17;
foreach (var list in obj)
{
foreach (var item in list)
{
hash = hash * 31 + item.GetHashCode();
}
}
return hash;
}
}
private class SequenceComparer<T> : IEqualityComparer<IEnumerable<T>>
{
public bool Equals(IEnumerable<T> x, IEnumerable<T> y)
{
return x.SequenceEqual(y);
}
public int GetHashCode(IEnumerable<T> obj)
{
int hash = 17;
foreach (var item in obj)
{
hash = hash * 31 + item.GetHashCode();
}
return hash;
}
}
}
}
测试
-1 -1 -1 -1
-1 -1 -1 -1
9 5 8 1
3 5 2 9
7 4 2 11
6 8 4 1
3 4 0 11
7 8 2 6
1 10 7 8
6 9 11 2
0 3 10 0
6 10 10 11
9 4 5 3
0 1 5 7
输出
