public void Calculate()
{
{
var x1 = nums[0];
for (int i = 1; i < nums.Count; i++)
{
var x2 = nums[i];
foreach (var x3 in nums.Where(x => x != x1 && x != x2))
{
foreach (var x4 in nums.Where(x => x != x1 && x != x2 && x != x3))
{
var x5 = nums.Find(x => x != x1 && x != x2 && x != x3 && x != x4);
var lines = new Line[5];
lines[0] = new Line(x1, x2);
lines[1] = new Line(x2, x3);
lines[2] = new Line(x3, x4);
lines[3] = new Line(x4, x5);
lines[4] = new Line(x5, x1);
lines[0].Next = lines[1];
lines[1].Next = lines[2];
lines[2].Next = lines[3];
lines[3].Next = lines[4];
lines[4].Next = lines[0];
if(lines.Select(x => x.InnerTotal).Distinct().Count() < 5)
continue;
var min = lines.Min(x => x.InnerTotal);
bool isOk = true;
foreach (var num in all.Except(nums))
{
var first = lines.FirstOrDefault(x => x.InnerTotal + num == min + 10);
if(first == null)
{
isOk = false;
break;
}
first.Insert(num);
}
if(isOk)
{
list.Add(lines);
}
}
}
}
}
}
int GetClosestLineIndex(Line[] lines, Func<Line, float> calcDistance)
{
var minValue = lines.Min(calcDistance);
return Array.FindIndex(lines, c => calcDistance(c) == minValue);
}
