public void Test_1(string caseName, int numberVertices, int[] parent, int expected)
{
var f0 = new HeightOfTreeFromParentArray();
var tree = f0.CalculateTreeHeight(parent);
tree.ShouldBe(expected);
}
public void Run(string[] args)
{
var solution = new HeightOfTreeFromParentArray();
var numVertices = Console.ReadLine().Split(' ').Select(n => Convert.ToInt32(n)).ToArray();
var parent = Console.ReadLine().Split(' ').Select(n => Convert.ToInt32(n)).ToArray();
Console.WriteLine(solution.CalculateTreeHeight(parent));
}
public void Large_Input()
{
var expected = 100000;
var large = new int[expected];
large[0] = -1;
for (int i = 0; i < expected; i++)
{
large[i] = i - 1;
}
var f0 = new HeightOfTreeFromParentArray();
var tree = f0.CalculateTreeHeight(large);
tree.ShouldBe(expected);
}