if (isRed(h.left) && isRed(h.left.left)) h = rotateRight(h); // 左左都红,右旋 if (isRed(h.left) && isRed(h.right)) flipColors(h); // 左右都红,变色 // 处理左右情况(左子节点红,左子节点的右子节点红) if (isRed(h.left) && !isRed(h.left.left) && isRed(h.left.right...
private void delete_red_leaf(TreeNode node, boolean needDel) 最后就是最麻烦的删除的删除黑色叶子(非Nil)节点的情况,找出兄弟节点,找出远侄子节点,找出近侄子节点。 private void delete_black_leaf(TreeNode node, boolean needDel) 删除叶子节点包含了另外一个参数booleanneedDel,因为上面提到的有些情况需要继续...
红黑树(Red-Black Tree)是一种非常重要的数据结构,在开发中我们时常能够见到它的身影,如JDK中的TreeMap、TreeSet以及JDK8中的HashMap,在它们的底层实现中都使用到了红黑树。红黑树的学习成本还是挺高的,为了掌握这一数据结构,我们决定从二叉排序树开始讲起,然后逐步衍生到AVL树、2-3树,最后再过渡到红黑树。本篇...
TreeNode parent=node.getParent();while(null!= parent && parent.getColor() ==NodeColor.RED) {//parent should not be root for root node must be blackbooleanuncleInRight = parent.getParent().getLeft() ==parent; TreeNode uncle= uncleInRight ?parent.getParent().getRight() : parent.getParent...
Interesting that AVL tree was much better than Red-Black tree. Treap was quite good too (maybe even the best choice as it is much simpler than only slightly faster AVL tree). Another interesting observation is that less balanced Scapegoat tree (0.9 alpha) had slower inserts than 0.75 alpha ...
27 MirrorOfBinaryTree 二叉树的镜像 Java 28 SymmetricalBinaryTree 对称的二叉树 Java 29 PrintMatrix 顺时针打印矩阵 Java 30 MinInStack 包含min 函数的栈 Java 31 StackPushPopOrder 栈的压入、弹出序列 Java 32_01 PrintTreeFromTopToBottom 不分行从上往下打印二叉树 Java 32_02 PrintTreesInLines 分行从上...
java-opengl-labs/learn-OpenGL - port of https://learnopengl.com/ tutorial (lwjgl) java-opengl-labs/Vulkan - port of https://github.com/SaschaWillems/Vulkan Jonatino/JOGL2D - Zero-overhead 2D rendering library for JOGL using Kotlin. soywiz/kaifu2x - Waifu2x port to Kotlin as library and...
TreeMap is implemented based on red-black tree structure, and it is ordered by the key. extends AbstractMap implements NavigableMap, Cloneable, Serializable。 每次查找(containsKey, get),put,都要有logn的时间 LinkedHashMap preserves the insertion order ...
Now time for backtracking…start your time to do hacking. Do you know you can get source code of Android APK file? Time to break the code..Let’s learn step by step. In this tutorial we will learn how to convert android APK file into source code. Android .apk file is a compressed ...
红黑树(Red-Black Tree)也是一种自平衡二叉查找树,在前面的文当中,我们已经描述了AVL树了。AVL树与红黑树很像,因此也经常被放到一起比较。 与其他平衡二叉树不同,红黑树的每个节点有个额外的位来存储节点的颜色(红色或者黑色)。这些颜色位保证了在树的插入和删除时能保持平衡。