0 课程地址
https://coding.imooc.com/lesson/207.html#mid=15082
1 重点关注
1.1 2-3树和红黑树的等价性归纳
2-3树的2节点为黑
2-3树的3节点左侧为红,2-3树的3节点右侧为黑
1.2 2-3树和红黑树的等价性分析
2 课程内容
3 Coding
3.1 红黑树coding
关键代码:
/** * 获取节点颜色 * @author weidoudou * @date 2023/4/21 20:35 * @param node 请添加参数描述 * @return boolean **/ private boolean getColor(Node node){ if(node == null){ return BLACK; } return node.color; } private static final boolean RED = true; private static final boolean BLACK = false; //1 定义Node class Node{ private K key; private V value; private Node left,right; private int height; private boolean color; public Node(K key, V value){ this.key = key; this.value = value; this.left = null; this.right = null; this.height = 1; this.color = RED; } @Override public String toString() { final StringBuffer sb = new StringBuffer("Node{"); sb.append("key=").append(key); sb.append(", value=").append(value); sb.append('}'); return sb.toString(); } }
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