```
/* Includes structure for a node and a newNode() function which
can be used to create a new node in the tree.
It is assumed that the data in nodes will be an integer, though
function can be modified according to the data type, easily.
*/
#include <stdio.h>
#include <stdlib.h>
struct node
{
struct node *leftNode;
int data;
struct node *rightNode;
};
struct node *newNode(int data)
{
struct node *node = (struct node *)malloc(sizeof(struct node));
node->leftNode = NULL;
node->data = data;
node->rightNode = NULL;
return node;
}
int main(void)
{
/* new node can be created here as :-
struct node *nameOfNode = newNode(data);
and tree can be formed by creating further nodes at
nameOfNode->leftNode and so on.
*/
return 0;
}
```