public static boolean find(Tree node, int value) {
count++;
if (value == node.getValue()) {
System.out.println(count);
return true;
}
if (value < node.getValue() && node.getLeft() != null) {
return find(node.getLeft(), value);
}
if (value > node.getValue() && node.getRight() != null) {
return find(node.getRight(), value);
}
return false;
}
private void smooth(Tree tag, Model model, Statistics statistics, Type type, double[] freqs) {
int number = freqs.length;
if (tag.getLeft() == null && tag.getRight() == null) {
int tag_index = model.getTagTable().toIndex(tag.getName());
for (int index = 0; index < number; index++) {
setFreq(model, statistics, tag_index, index, type, freqs[index]);
}
return;
}
double[] fine_freqs = new double[number];
if (tag.getLeft() == null || tag.getRight() == null) {
Tree child_tag;
if (tag.getLeft() == null) {
child_tag = tag.getRight();
} else {
child_tag = tag.getLeft();
}
collectFreqs(child_tag, model, type, fine_freqs);
smooth(freqs, fine_freqs, type);
smooth(child_tag, model, statistics, type, fine_freqs);
return;
}
collectFreqs(tag.getLeft(), model, type, fine_freqs);
smooth(freqs, fine_freqs, type);
smooth(tag.getLeft(), model, statistics, type, fine_freqs);
collectFreqs(tag.getRight(), model, type, fine_freqs);
smooth(freqs, fine_freqs, type);
smooth(tag.getRight(), model, statistics, type, fine_freqs);
}
public static void insert(Tree node, int value) {
if (node.left == null && node.right == null && node.getValue() == 0) {
node.setValue(value);
return;
}
Tree newNode = new Tree();
newNode.setValue(value);
if (value < node.getValue() && node.getLeft() == null) {
node.setLeft(newNode);
return;
} else if (value < node.getValue() && node.getLeft() != null) {
insert(node.getLeft(), value);
} else if (value > node.getValue() && node.getRight() == null) {
node.setRight(newNode);
return;
} else if (value > node.getValue() && node.getRight() != null) {
insert(node.getRight(), value);
}
return;
}
private int isAVLWrapper(Tree<T> tree) {
if (tree == null) {
return 1;
}
return (isAVLWrapper(tree.getLeft()) - isAVLWrapper(tree.getRight()));
}
/* Search for n in a tree t, and return the subtree whose root is n
* If n does not occur in the tree, throw an exception.
*/
public static Tree find(int n, Tree t) {
if (t.getEmpty()) throw new IllegalArgumentException("Value not present in search" + " tree");
else if (n == t.getValue()) return t;
else if (n < t.getValue()) return find(n, t.getLeft());
else return find(n, t.getRight());
}
/* Insert n into a tree t in order, and return the resulting tree.
*/
public static Tree insert(int n, Tree t) {
if (t.getEmpty()) return new Tree(n, new Tree(), new Tree());
else if (n <= t.getValue()) return new Tree(t.getValue(), insert(n, t.getLeft()), t.getRight());
else return new Tree(t.getValue(), t.getLeft(), insert(n, t.getRight()));
}
