Renamed Examples to Implementation

Implementation/Common/Distance/IDistanceComparer.cs

@@ -0,0 +1,27 @@
+using System.Collections;
+
+namespace Common.Distance;
+
+public interface IDistanceComparer
+{
+  /// <summary>
+  /// The calculated absolute distance between
+  /// <see cref="IDistanceComparer{T}.Reference"/> and
+  /// <see cref="IDistanceComparer{T}.Hypothesis"/>
+  /// </summary>
+  public double Distance { get; }
+}
+
+public interface IDistanceComparer<out T> : IDistanceComparer
+  where T : IEnumerable
+{
+  /// <summary>
+  /// The comparison reference, meaning the "known to be correct" value
+  /// </summary>
+  public T Reference { get; }
+
+  /// <summary>
+  /// The value hypothesis, whose correctness is checked against <see cref="Reference"/>
+  /// </summary>
+  public T? Hypothesis { get; }
+}