struct _tree
{
    char *word;
    int    count;
    struct _tree *left;
    struct _tree *right;
};

void treeprint(struct _tree *node)
{
    static int depth = 0;

    if(node)
        printf("\nLevel %d: %d occurrences of %s",
            depth,node->count,node->word);
    depth++;
    treeprint(node->left);
    treeprint(node->right);
    depth--;
}