/// <summary>
/// Sorts two-dimensional array using IComparer.Sort method.
/// </summary>
/// <param name="arr">Array to sort.</param>
/// <param name="comparer">IComparer.Sort delegate.</param>
private static void Sort(int[][] arr, DelegateComparer comparer)
{
_ = arr ?? throw new ArgumentNullException(nameof(arr), "Array should not be null.");
_ = comparer ?? throw new ArgumentNullException(nameof(comparer), "Comparer should not be null.");
// Classic bubble sort.
for (int i = 0; i < arr.Length; i++)
{
for (int j = 0; j < arr.Length - 1; j++)
{
// Delegate invoke.
if (comparer.Invoke(arr[j], arr[j + 1]) > 0)
{
var temp = arr[j + 1];
arr[j + 1] = arr[j];
arr[j] = temp;
}
}
}
}
public int Compare(int[] x, int[] y)
{
return(comparer.Invoke(x, y));
}
