Insertion, deletion min/max, and build. Insertion: we insert the node into the leaf, and max(min)heapify the heap to restore the ordering, the worst case run time is O(nlogn). Deletion: swap the node that was intended to be deleted (usually the root for max or min element) with ...
Using a binary heap can reduce the time complexity. Each insertion or decrease-key operation takes𝑂(log𝑉)O(logV), and with an adjacency list, you go through each edge once, leading to𝑂((𝑉+𝐸)log𝑉)O((V+E)logV)time complexity, where𝐸Eis the number of edges. Th...
12.2 -Querying a BST - Yep. All of it. 12.3 -Insertion/Deletion - Same as 12.2 12.4 -Randomly built BSTs - just know Theorem 12.4 (expected height of random BST is O(lgn)) and an idea of why it's true. Chapter 13 This one is easy. Know what a Red-Black tree is, and what i...
It's fun to see how sorting algorithms work, but in practice you'll almost never have to provide your own sorting routines. Swift's own sort() is more than up to the job. But if you're curious, read on... Basic sorts: Insertion Sort Selection Sort Shell Sort Fast sorts: Quicksort...
1902.Depth-of-BST-Given-Insertion-Order (H-) LCA 1123.Lowest-Common-Ancestor-of-Deepest-Leaves (M+) (aka. LC.865) 235.Lowest-Common-Ancestor-of-a-Binary-Search-Tree (M) 236.Lowest-Common-Ancestor-of-a-Binary-Tree (M+) 1644.Lowest-Common-Ancestor-of-a-Binary-Tree-II (M+) 1676.Lo...
// Determine FValue (in the priority queue) friend bool operator<(const Node & a, const Node & b) { return a.getFValue() > b.getFValue(); } }; // A-star algorithm. // The path returned is a string of direction digits. ...
It's fun to see how sorting algorithms work, but in practice you'll almost never have to provide your own sorting routines. Swift's own sort() is more than up to the job. But if you're curious, read on... Basic sorts: Insertion Sort Selection Sort Shell Sort Fast sorts: Quicksort...
插入排序(Insertion-Sort)的算法描述是一种简单直观的排序算法。它的工作原理是通过构建有序序列,对于未排序数据,在已排序序列中从后向前扫描,找到相应位置并插入。插入排序由于操作不尽相同,可分为 直接插入排序、折半插入排序(又称二分插入排序)、链表插入排序、希尔排序。 算法描述 一般来说,插入排序都采用in-plac...
B2.BST : insertion B3.BST : removal C.balance+equivalence D1.AVL : rebalance D2.AVL : insertion D3.AVL : removal D4.AVL : (3+4)-construction Homework 208.ABST I A1.Splay_Tree.splay1 A2.Splay_Tree.splay2 A3.Splay_Tree.implementation ...
二叉搜索树(BST)—— 以某种方式组织自己的节点的二叉树,以求较快的查询速度。 AVL树—— 一种通过旋转来维持平衡的二叉搜索树。 🚧 红黑树. A self balancing binary search tree. 伸展树. A self balancing binary search tree that enables fast retrieval of recently updated elements. 线索二叉树. A bin...