public EinsteinResult Run()
{
this.Init();
var r = EinsteinResult.Failure;
this._stopwatch.Start();
/*
* 產生 Person 資料
*/
for (var houseColor = 1; houseColor <= 5; houseColor++)
{
for (var nationality = 1; nationality <= 5; nationality++)
{
for (var pet = 1; pet <= 5; pet++)
{
for (var beverage = 1; beverage <= 5; beverage++)
{
for (var cigaret = 1; cigaret <= 5; cigaret++)
{
var person = new Person(houseColor, nationality, pet, beverage, cigaret);
//使用逆否命題判斷關連
if (Contrapositive(person))
{
//分類
//如果國籍為挪威，存入 _1 序列中
if (person.Nationality == Nationality.Norway)
{
this._1.Add(person);
}
//如果房屋為藍色，存入 _2 序列中
else if (person.HouseColor == HouseColor.Blue)
{
this._2.Add(person);
}
//如果喜歡的飲料為牛奶，存入 _3 序列中
else if (person.Beverage == Beverage.Milk)
{
this._3.Add(person);
}
//剩餘無法分類的存進 _45 序列中，後面要做交集用
else
{
this._45.Add(person);
}
}
}
}
}
}
}
foreach (var p1 in _1)
{
//鎖定一號位置
this._persons[1] = p1;
foreach (var p2 in _2)
{
//鎖定二號位置
this._persons[2] = p2;
//確定 1~2號 符合條件
if (PropertiesChecker(1, 2))
{
foreach (var p3 in _3)
{
//鎖定三號位置
this._persons[3] = p3;
//確定 1~3號 符合條件
if (PropertiesChecker(1, 3))
{
foreach (var p4 in _45)
{
//鎖定四號位置
this._persons[4] = p4;
//確定 1~4號 符合條件
if (PropertiesChecker(1, 4))
{
foreach (var p5 in _45)
{
//鎖定五號位置
_persons[5] = p5;
//確定 1~5號 符合條件
if (PropertiesChecker(1, 5) && RelativePosition())
{
//成功
this._stopwatch.Stop();
r = EinsteinResult.Success(this._persons.Skip(1).Take(5), this._stopwatch.Elapsed);
this.OnRunCompleted?.Invoke(r);
return(r);
}
}
}
}
}
}
}
}
}
//失敗
this._stopwatch.Stop();
this.OnRunCompleted?.Invoke(r);
return(r);
bool PropertiesChecker(int min, int max)
{
for (int i = min; i < max; i++)
{
if (this._persons[max].PartitalEquals(this._persons[i]))
{
return(false);
}
}
return(true);
}
}
static EinsteinResult()
{
Failure = new EinsteinResult();
}