//check if tree is sumtree or not
//public static TreeNode<int> ConstructTreeGivenInOrderAndPreOrder(int[] inorder,int[] preorder)
//{
// wh
//}
//summify tree
//public static TreeNode<int> ConstructTreeGivenInOrderAndPreOrder(int[] inorder,int[] preorder)
//{
// wh
//}
//Insertion in tree
//public static TreeNode<int> ConstructTreeGivenInOrderAndPreOrder(int[] inorder,int[] preorder)
//{
// wh
//}
//Deletion in tree
//public static TreeNode<int> ConstructTreeGivenInOrderAndPreOrder(int[] inorder,int[] preorder)
//{
// wh
//}
//Find Binary tree max path sum
//http://www.geeksforgeeks.org/find-maximum-path-sum-in-a-binary-tree/
public static int MaxPathSum(TreeNode <int> node)
{
MaxInt max = new MaxInt();
MaxPathSumInternal(node, max);
return(max.Val);
}
public override void Solve(IOManager io)
{
var n = io.ReadInt();
var k = io.ReadInt();
var a = new int[n];
var segTree = new SegmentTree <MaxInt>(Enumerable.Repeat(new MaxInt(0), 300001).ToArray());
for (int i = 0; i < a.Length; i++)
{
var ai = io.ReadInt();
var left = System.Math.Max(0, ai - k);
var right = System.Math.Min(segTree.Length, ai + k + 1);
segTree[ai] = new MaxInt(segTree.Query(left, right).Value + 1);
}
io.WriteLine(segTree.Query(0, segTree.Length).Value);
}
private static int MaxPathSumInternal(TreeNode <int> node, MaxInt max)
{
if (node == null)
{
max.Val = 0;
return(0);
}
int left = MaxPathSumInternal(node.left, max);
int right = MaxPathSumInternal(node.right, max);
int biggerChild = Math.Max(left, right);
int biggerIncludingRoot = Math.Max(biggerChild + node.data, node.data);
int leftRightRoot = left + right + node.data;
int bigger = Math.Max(biggerIncludingRoot, leftRightRoot);
if (max.Val < bigger)
{
max.Val = bigger;
}
return(biggerIncludingRoot);
}
public override void Solve(IOManager io)
{
var n = io.ReadInt();
var queries = io.ReadInt();
var a = new MaxInt[n];
for (int i = 0; i < a.Length; i++)
{
a[i] = new MaxInt(io.ReadInt());
}
var segtree = new LazySegmentTree <MaxInt, Nothing>(a);
for (int q = 0; q < queries; q++)
{
var type = io.ReadInt();
if (type == 1)
{
var i = io.ReadInt() - 1;
var v = io.ReadInt();
segtree[i] = new MaxInt(v);
}
else if (type == 2)
{
var l = io.ReadInt() - 1;
var r = io.ReadInt();
io.WriteLine(segtree.Query(l, r).Value);
}
else
{
var l = io.ReadInt() - 1;
var v = io.ReadInt();
io.WriteLine(Math.Max(l, segtree.FindMaxRight(l, ai => ai.Value < v)) + 1);
}
}
}