How do you count rooted planar n n-ary trees with some number of leaves? For n = 2 n = 2 this puzzle leads to the Catalan numbers. These are so fascinating that the combinatorist Richard Stanley wrote ...

private int[] heights; // Stores heights of leaf nodes in order of traversal private int[] d; // Stores depth/height of each node by its value private int[] l; // Stores left boundary index for each ...

Understand what the interviewer is asking for by using test cases and questions about the problem. Established a set (2-3) of test cases to verify their own solution later. Established a set (1-2) of ...

Abstract: Zernike radial polynomials (ZRP) play a significant role in application areas such as optics design, imaging systems, and image processing systems. Currently, there are two kinds of ...

Binary Classification Using a scikit Decision Tree Dr. James McCaffrey of Microsoft Research says decision trees are useful for relatively small datasets and when the trained model must be easily ...

What are Merkle trees and how do they work? A binary tree that uses cryptographic hash algorithms is called a Merkle tree. A hash tree also referred to as a Merkle tree, has labeled leaf nodes with ...