Introduction to Binary Index Tree or Fenwick Tree Binary Index Tree (BIT) aka Fenwick Tree is a simple data structure that has O(LogN) complexity in updating element in a …
I have implemented a C/C++ Rocket that launches a rocket in the console in this post: Simple C/C++ Rocket Animation. My sons recently start learning Python programming and I …
Given a two-dimensional integer matrix, return the total number of integers whose value is the largest in its row and in its column. For example, given 1 3 2 …
You are given a tree root and a list of strings moves consisting of “RIGHT”, “LEFT” and “UP”. Starting from root, traverse the tree by performing each move in …
Given a string s representing a phrase, return its acronym. Acronyms should be capitalized and should not include the word “and”. Example 1 Input s = “For your information” …
Given a list of integers nums, put all the zeros to the back of the list by modifying the list in-place. The relative ordering of other elements should stay …