Tree

#include<iostream>
using namespace std;
struct tree
{
	string ime;
	double sr_uspeh;
	tree *left;
	tree *right;
};
void CreateP(tree *T, string i, double x)
{
	if(T != NULL)
	{
		if(x <= T->sr_uspeh)
		{
			if(T->left != NULL)
			{
				CreateP(T->left, i, x);
			}
			else
			{
				tree *z = new tree;
				z->ime = i;
				z->sr_uspeh = x;
				z->left = NULL;
				z->right = NULL;
				T->left = z;
			}
		}
		else
		{
			if(T->right != NULL)
			{
				CreateP(T->right, i, x);
			}
			else
			{
				tree *z = new tree;
				z->ime = i;
				z->sr_uspeh = x;
				z->left = NULL;
				z->right = NULL;
				T->right = z;
			}
		}
	}
}
void Print(tree *T)
{
	if(T == NULL) return;
	Print(T->right);
	cout<<T->ime<<" - "<<T->sr_uspeh<<endl;
	Print(T->left);
}
int main()
{
	int n;
	cout<<"Vuvedi broq uchenici: ";
	cin>>n;
	string ime;
	double sr_uspeh;
	tree *T = new tree;
	cout<<"Ime: ";
	cin>>ime;
	cout<<"Sreden uspeh: ";
	cin>>sr_uspeh;
	T->ime = ime;
	T->sr_uspeh = sr_uspeh;
	T->left = NULL;
	T->right = NULL;
	for(int i = 1; i < n; i++)
	{
		cout<<"Ime: ";
		cin>>ime;
		cout<<"Sreden uspeh: ";
		cin>>sr_uspeh;
		CreateP(T, ime, sr_uspeh);
	}
	Print(T);
}