public void Solve()
{
var n = ri;
var w = Enumerate(n, x => rl);
const int T = 500050;
var seg = new StarySkyTree(new long[T]);
var Q = Enumerate(T, x => new List <int>());
for (int i = 0; i < n; i++)
{
var m = ri;
foreach (var x in sc.Integer(m))
{
Q[x / 2].Add(i);
}
}
//seg.Push(0, 1, w.Sum());
var max = 0L;
var prev = Enumerate(n, x => - 1);
for (int t = 1; t < T; t++)
{
var ma = seg.Query(0, t);
max = Max(max, ma);
seg.Push(t, t + 1, ma);
//Debug.WriteLine(seg.Items.Take(t + 1).Select(x => x - X).AsJoinedString());
foreach (var i in Q[t])
{
var pre = prev[i];
seg.Push(pre + 1, t + 1, w[i]);
prev[i] = t;
}
}
IO.Printer.Out.WriteLine(max);
}
public void Solve()
{
var rand = new Random(0);
for (int _ = 0; _ < 1; _++)
{
var n = ri;
var m = ri;
//var n = rand.Next(50, 100);
//var m = rand.Next(50, 100);
var A = Enumerate(m + 5, x => new List <int>());
var stary = new StarySkyTree(m);
stary.Push(0, m, 500000);
for (int i = 0; i < m; i++)
{
stary.Push(i, m, -1);
}
var L = new int[n];
var R = new int[n];
for (int i = 0; i < n; i++)
{
var l = ri;
var r = ri;
//var l = rand.Next(0, 40);
//var r = rand.Next(m - 40, m + 2);
L[i] = l;
R[i] = r;
}
for (int i = 0; i < n; i++)
{
var l = L[i];
var r = R[i];
A[l].Add(r);
stary.Push(m - r, m, 1);
}
var cnt = 0;
var pqL = new PriorityQueue <int>();
long min = 1000000000;
var dame = 0;
for (int i = 0; i <= m; i++, cnt++)
{
//Debug.WriteLine(stary.Items.Select(x => x - 500000).AsJoinedString());
foreach (var x in A[i])
{
pqL.Enqueue(x);
stary.Push(m - x, m, -1);
}
while (pqL.Count > cnt)
{
var p = pqL.Dequeue();
if (p == m + 1)
{
dame++;
}
else
{
stary.Push(m - p, m, 1);
}
}
var max = Max(0, stary.Query(0, m) - 500000) + dame;
min = Min(min, max);
}
if (min < n - m)
{
min = n - m;
}
IO.Printer.Out.WriteLine(min);
//var res = debug(L, R, m);
//Debug.WriteLine(res);
//if (min != res)
{
}
}
}