Not able to get the input format

#1

How many nodes i need to insert or when to stop. Like there’s no -1 as input which denotes to stop taking further inputs. Also the way input format is printed can i take it in linear form as 1,2,2,2,3,0,4,0,5,2,6,0,7,0 as the nodes.

#2

@Kishan-Mishra-2464674013761441 hey kishan
this is generic tree and for input go through this line of code
class node
{
public:
int data;
vector<node*> tree;
node(int n,int d)
{
tree.resize(n);
data=d;
}
};

node*buildtree()
{
int data,child;
cin>>data>>child;

node*root=new node(child,data);
for(int i=0;i<child;i++)
{
root->tree[i]=buildtree();
}

return root;

}

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#3

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