public void Solve(ConsoleInput cin)
{
var N = cin.ReadInt;
var emp = new List <int> [N];
for (int i = 0; i < N; ++i)
{
emp[i] = new List <int>();
}
for (int i = 0; i < N - 1; ++i)
{
emp[cin.ReadInt - 1].Add(i + 1);
}
var salary = new int[N];
Func <int, int> f = null;
f = (int i) => {
if (salary[i] != 0)
{
return(salary[i]);
}
if (emp[i].Count == 0)
{
return(1);
}
var min = int.MaxValue;
var max = 0;
foreach (var x in emp[i])
{
min = Min(f(x), min);
max = Max(f(x), max);
}
return(salary[i] = (min + max) + 1);
};
WriteLine(f(0));
}
public void Solve(ConsoleInput cin)
{
checked
{
var N = cin.ReadInt;
var red = new List <Point>();
var blue = new List <Point>();
for (int i = 0; i < N; ++i)
{
red.Add(new Point(cin.ReadInt, cin.ReadInt));
}
for (int i = 0; i < N; ++i)
{
blue.Add(new Point(cin.ReadInt, cin.ReadInt));
}
var r = red.OrderByDescending(p => p.y).ThenByDescending(p => p.x).ToArray();
var b = blue.OrderBy(p => p.x).ThenBy(p => p.y).ToArray();
var used = new bool[N];
var cnt = 0;
for (int i = 0; i < N; ++i)
{
for (int j = 0; j < N; ++j)
{
if (r[i].x < b[j].x && r[i].y < b[j].y && !used[j])
{
cnt++;
used[j] = true;
break;
}
}
}
WriteLine(cnt);
}
}
public void Solve(ConsoleInput cin)
{
var A = cin.ReadIntArray(5).Combinations(3).Select(x => x.Sum()).OrderByDescending(x => x).ToList();
WriteLine(A[2]);
}