Simple Exponential Backoff Retry Class in C++
As a user – I want to build a simple retry library, which retries on error and has a mechanism to do an exponential backoff. For example: var err …
Teaching Kids Programming – Using GroupBy Algorithm to Compress String
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string lowercase alphabet s, eliminate consecutive duplicate characters from the string and return it. That is, if a …
Simple Blockchain Example in Java
Blockchain is a hot topic – and we’ll use simple Java code to illustrate the idea. First, we need to define a Block class that is basically a Node …
How to Define N-nary Tree in Java?
In order to define a N-ary tree, we need to be able to store the Node value and its children – which is a list of the Node. And …
Teaching Kids Programming – Find Root of N-Ary Tree using Hash Set
Teaching Kids Programming: Videos on Data Structures and Algorithms Given all the nodes of an N-ary tree as an array Node tree where each node has a unique value. …
Teaching Kids Programming – N-ary Tree Preorder Traversal Algorithms using Iterations or Recursion
Teaching Kids Programming: Videos on Data Structures and Algorithms Given the root of an n-ary tree, return the preorder traversal of its nodes’ values. Nary-Tree input serialization is represented …