SP16549 QTREE6 - Query on a tree VI

You are given a tree (an acyclic undirected connected graph) with $n$ nodes. The tree nodes are numbered from $1$ to $n$. Each node has a color, white or black. All the nodes are black initially. We will ask you to perform some instructions of the following form: - `0 u`: ask for how many nodes are connected to $u$, two nodes are connected if all the node on the path from $u$ to $v$ (inclusive $u$ and $v$) have the same color. - `1 u`: toggle the color of $u$ (that is, from black to white, or from white to black).

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$1\leq n,m\leq 10^5$。