initial commit

puzzle/magicSeries/Series.cs

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+using System.Linq;
+
+namespace magicSeries
+{
+	public class Series
+	{
+		public readonly int[] Values;
+
+		public readonly int[] Occurrances;
+
+		public int Size { get { return Values.Length; } }
+
+		public Series(int size)
+		{
+			Values = new int[size];
+			Occurrances = new int[size + 1];
+			Occurrances[0] = size;
+		}
+
+		public int GetOccurrances(int i)
+		{
+			return Occurrances[i];
+		}
+
+		public bool IsFeasible()
+		{
+			for (var n = 0; n < Values.Count(); n++)
+				if (Values[n] != Occurrances[n])
+					return false;
+			return true;
+		}
+
+		public void UpdateValue(int n, int newValue)
+		{
+			Occurrances[Values[n]]--;
+			Occurrances[newValue]++;
+			Values[n] = newValue;
+		}
+	}
+}