public void Test2()
{
int[] a = new int[] { 1, 2, 3, 4, 5, 6, 7, 2, 3, 5, 6, 1, 4 };
Assert.AreEqual(7, Unpaired.Solve(a));
}
public void Test1()
{
int[] a = new int[] { 2, 2, 3, 3, 4, 4, 5 };
Assert.AreEqual(5, Unpaired.Solve(a));
}