62 lines
1.8 KiB
Java
62 lines
1.8 KiB
Java
package site.licsber.bitree;
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public class BiTree<T> {
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public static <T> Node<T> deepCopy(Node<T> srcRoot) {
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if (srcRoot == null) {
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return null;
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}
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Node<T> p = srcRoot;
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Node<T> res = new Node<>(p.data);
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Node<T> q = res;
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while (p != null) {
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while (p.left != null && q.left == null) {
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p = p.left;
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q = new Node<>(p.data, q);
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System.out.println(q);
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q.parent.left = q;
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}
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if (p.right != null && q.right == null) {
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p = p.right;
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q = new Node<>(p.data, q);
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System.out.println(q);
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q.parent.right = q;
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} else {
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while (p.parent != null && p.parent.right == p) {
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p = p.parent;
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q = q.parent;
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}
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p = p.parent;
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q = q.parent;
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}
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}
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return res;
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}
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public static <T> void walk(Node<T> node) {
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if (node != null) {
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System.out.print(node);
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walk(node.left);
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walk(node.right);
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}
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}
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public static void main(String[] args) {
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Node<String> testRoot = new Node<>("A");
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testRoot.left = new Node<>("B", testRoot);
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testRoot.right = new Node<>("C", testRoot);
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testRoot.left.left = new Node<>("D", testRoot.left);
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testRoot.left.left.right = new Node<>("G", testRoot.left.left);
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testRoot.right.left = new Node<>("E", testRoot.right);
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testRoot.right.right = new Node<>("F", testRoot.right);
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testRoot.right.right.left = new Node<>("H", testRoot.right.right);
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walk(testRoot);
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System.out.println();
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Node<String> copyRoot = deepCopy(testRoot);
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walk(copyRoot);
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}
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}
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