C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
	public static void Main()
	{   
		    var list = new List<(double Price, double Volume)>();
		
		    list.Add((9638.0, 3217.0));
            list.Add((9637.0, 3215.0));
            list.Add((9636.0, 3215.0));
            list.Add((9635.0, 3215.0));
            list.Add((9634.0, 3215.0));
            list.Add((9633.0, 3215.0));
            list.Add((9632.0, 3215.0));
            list.Add((9631.0, 3215.0));
            list.Add((9630.0, 3215.0));
            list.Add((9629.0, 3215.0));
            list.Add((9628.0, 3215.0));
            list.Add((9627.0, 3215.0));
            list.Add((9626.0, 3215.0));
            list.Add((9625.0, 3215.0));
            list.Add((9624.0, 3215.0));
            list.Add((9623.0, 4311.0));
            list.Add((9622.0, 5071.0));
            list.Add((9621.0, 6056.0));
            list.Add((9620.0, 9087.0));
            list.Add((9619.0, 10819.0));
            list.Add((9618.0, 14921.0));
            list.Add((9617.0, 16496.0));
            list.Add((9616.0, 17601.0));
            list.Add((9615.0, 19626.0));
            list.Add((9614.0, 21800.0));
            list.Add((9613.0, 21973.0));
            list.Add((9612.0, 22168.0));
            list.Add((9611.0, 18791.0));
            list.Add((9610.0, 15700.0));
            /*list.Add((9609.0, 16900.0));
            list.Add((9608.0, 13971.0));
            list.Add((9607.0, 12367.0));
            list.Add((9606.0, 8706.0));
            list.Add((9605.0, 7134.0));
            list.Add((9604.0, 6107.0));
            list.Add((9603.0, 5341.0));
            list.Add((9602.0, 3827.0));*/

		    
		    var maxVol = list.MaxBy(t => t.Volume);
		    var minPr = list.Min(t => t.Price);
		    var maxPr = list.Max(t => t.Price);
		
		    var sum = maxVol.Volume;
		    var pairs = 
				  list
				  .Where(t => t.Price > maxVol.Price) 
				  .Reverse()
			      .Concat(Enumerable.Repeat<(double Price, double Volume)>((maxPr,0.0), list.Count))
                  .Chunk(2)
				  .Zip(
					  list
				      .Where(t => t.Price < maxVol.Price)
				      .Concat(Enumerable.Repeat<(double Price, double Volume)>((minPr, 0.0), list.Count))
				      .Chunk(2)
				  )
				  .SelectMany(tz => new []{ tz.Item1, tz.Item2 })
				  .Select(c => new{ MinPrice = c.Min(t => t.Price), MaxPrice = c.Max(t => t.Price), RollingSum = sum, RollingSumNext =  (sum += c.First().Volume + c.Last().Volume) } )
				  .Where(at => at.RollingSum < 240000)
				  .ToArray();
		    
		    minPr = pairs.Min(at => at.MinPrice);
		    maxPr = pairs.Max(at => at.MaxPrice);
            
		    pairs.Dump();
		Console.WriteLine(minPr);
		Console.WriteLine(maxPr);
	}
}

​x
 
using System;
using System.Collections.Generic;
using System.Linq;
​
public class Program
{
    public static void Main()
    {   
            var list = new List<(double Price, double Volume)>();
        
            list.Add((9638.0, 3217.0));
            list.Add((9637.0, 3215.0));
            list.Add((9636.0, 3215.0));
            list.Add((9635.0, 3215.0));
            list.Add((9634.0, 3215.0));
            list.Add((9633.0, 3215.0));
            list.Add((9632.0, 3215.0));
            list.Add((9631.0, 3215.0));
            list.Add((9630.0, 3215.0));
            list.Add((9629.0, 3215.0));
            list.Add((9628.0, 3215.0));
            list.Add((9627.0, 3215.0));
            list.Add((9626.0, 3215.0));
            list.Add((9625.0, 3215.0));
            list.Add((9624.0, 3215.0));
            list.Add((9623.0, 4311.0));
            list.Add((9622.0, 5071.0));
            list.Add((9621.0, 6056.0));
            list.Add((9620.0, 9087.0));
            list.Add((9619.0, 10819.0));
            list.Add((9618.0, 14921.0));
            list.Add((9617.0, 16496.0));
            list.Add((9616.0, 17601.0));
            list.Add((9615.0, 19626.0));
            list.Add((9614.0, 21800.0));
            list.Add((9613.0, 21973.0));
            list.Add((9612.0, 22168.0));
            list.Add((9611.0, 18791.0));
            list.Add((9610.0, 15700.0));
            /*list.Add((9609.0, 16900.0));
            list.Add((9608.0, 13971.0));
            list.Add((9607.0, 12367.0));
            list.Add((9606.0, 8706.0));
            list.Add((9605.0, 7134.0));
            list.Add((9604.0, 6107.0));
            list.Add((9603.0, 5341.0));
            list.Add((9602.0, 3827.0));*/
​
            
            var maxVol = list.MaxBy(t => t.Volume);
            var minPr = list.Min(t => t.Price);
            var maxPr = list.Max(t => t.Price);
        
            var sum = maxVol.Volume;
            var pairs = 
                  list
                  .Where(t => t.Price > maxVol.Price) 
                  .Reverse()
                  .Concat(Enumerable.Repeat<(double Price, double Volume)>((maxPr,0.0), list.Count))
                  .Chunk(2)
                  .Zip(
                      list
                      .Where(t => t.Price < maxVol.Price)
                      .Concat(Enumerable.Repeat<(double Price, double Volume)>((minPr, 0.0), list.Count))
                      .Chunk(2)
                  )
                  .SelectMany(tz => new []{ tz.Item1, tz.Item2 })
                  .Select(c => new{ MinPrice = c.Min(t => t.Price), MaxPrice = c.Max(t => t.Price), RollingSum = sum, RollingSumNext =  (sum += c.First().Volume + c.Last().Volume) } )
                  .Where(at => at.RollingSum < 240000)
                  .ToArray();
            
            minPr = pairs.Min(at => at.MinPrice);
            maxPr = pairs.Max(at => at.MaxPrice);
            
            pairs.Dump();
        Console.WriteLine(minPr);
        Console.WriteLine(maxPr);
    }
}

Dumping object(<>f__AnonymousType0`4[])
[
   {
   MaxPrice        : 9614
   MinPrice        : 9613
   RollingSum      : 22168
   RollingSumNext  : 65941
   ToString()      : { MinPrice = 9613, MaxPrice = 9614, RollingSum = 22168, RollingSumNext = 65941 }
   },
   {
   MaxPrice        : 9611
   MinPrice        : 9610
   RollingSum      : 65941
   RollingSumNext  : 100432
   ToString()      : { MinPrice = 9610, MaxPrice = 9611, RollingSum = 65941, RollingSumNext = 100432 }
   },
   {
   MaxPrice        : 9616
   MinPrice        : 9615
   RollingSum      : 100432
   RollingSumNext  : 137659
   ToString()      : { MinPrice = 9615, MaxPrice = 9616, RollingSum = 100432, RollingSumNext = 137659 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 137659
   RollingSumNext  : 137659
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 137659, RollingSumNext = 137659 }
   },
   {
   MaxPrice        : 9618
   MinPrice        : 9617
   RollingSum      : 137659
   RollingSumNext  : 169076
   ToString()      : { MinPrice = 9617, MaxPrice = 9618, RollingSum = 137659, RollingSumNext = 169076 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 169076
   RollingSumNext  : 169076
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 169076, RollingSumNext = 169076 }
   },
   {
   MaxPrice        : 9620
   MinPrice        : 9619
   RollingSum      : 169076
   RollingSumNext  : 188982
   ToString()      : { MinPrice = 9619, MaxPrice = 9620, RollingSum = 169076, RollingSumNext = 188982 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 188982
   RollingSumNext  : 188982
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 188982, RollingSumNext = 188982 }
   },
   {
   MaxPrice        : 9622
   MinPrice        : 9621
   RollingSum      : 188982
   RollingSumNext  : 200109
   ToString()      : { MinPrice = 9621, MaxPrice = 9622, RollingSum = 188982, RollingSumNext = 200109 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 200109
   RollingSumNext  : 200109
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 200109, RollingSumNext = 200109 }
   },
   {
   MaxPrice        : 9624
   MinPrice        : 9623
   RollingSum      : 200109
   RollingSumNext  : 207635
   ToString()      : { MinPrice = 9623, MaxPrice = 9624, RollingSum = 200109, RollingSumNext = 207635 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 207635
   RollingSumNext  : 207635
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 207635, RollingSumNext = 207635 }
   },
   {
   MaxPrice        : 9626
   MinPrice        : 9625
   RollingSum      : 207635
   RollingSumNext  : 214065
   ToString()      : { MinPrice = 9625, MaxPrice = 9626, RollingSum = 207635, RollingSumNext = 214065 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 214065
   RollingSumNext  : 214065
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 214065, RollingSumNext = 214065 }
   },
   {
   MaxPrice        : 9628
   MinPrice        : 9627
   RollingSum      : 214065
   RollingSumNext  : 220495
   ToString()      : { MinPrice = 9627, MaxPrice = 9628, RollingSum = 214065, RollingSumNext = 220495 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 220495
   RollingSumNext  : 220495
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 220495, RollingSumNext = 220495 }
   },
   {
   MaxPrice        : 9630
   MinPrice        : 9629
   RollingSum      : 220495
   RollingSumNext  : 226925
   ToString()      : { MinPrice = 9629, MaxPrice = 9630, RollingSum = 220495, RollingSumNext = 226925 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 226925
   RollingSumNext  : 226925
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 226925, RollingSumNext = 226925 }
   },
   {
   MaxPrice        : 9632
   MinPrice        : 9631
   RollingSum      : 226925
   RollingSumNext  : 233355
   ToString()      : { MinPrice = 9631, MaxPrice = 9632, RollingSum = 226925, RollingSumNext = 233355 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 233355
   RollingSumNext  : 233355
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 233355, RollingSumNext = 233355 }
   },
   {
   MaxPrice        : 9634
   MinPrice        : 9633
   RollingSum      : 233355
   RollingSumNext  : 239785
   ToString()      : { MinPrice = 9633, MaxPrice = 9634, RollingSum = 233355, RollingSumNext = 239785 }
   },
   {
   MaxPrice        : 9610
   MinPrice        : 9610
   RollingSum      : 239785
   RollingSumNext  : 239785
   ToString()      : { MinPrice = 9610, MaxPrice = 9610, RollingSum = 239785, RollingSumNext = 239785 }
   },
   {
   MaxPrice        : 9636
   MinPrice        : 9635
   RollingSum      : 239785
   RollingSumNext  : 246215
   ToString()      : { MinPrice = 9635, MaxPrice = 9636, RollingSum = 239785, RollingSumNext = 246215 }
   }
]9610
9636

Cached Result
Last Run:	2:33:03 am
Compile:	0.024s
Execute:	0.1s
Memory:	6.10Mb
CPU:	0.124s

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