How to Compute the Number of Pawns-Captures for Rook in Chess?
On an 8 x 8 chessboard, there is one white rook. There also may be empty squares, white bishops, and black pawns. These are given as characters ‘R’, ‘.’, …
Build Your First Node.JS Unikernel with OPS
Unikernels are a newer way of deploying your software to servers. Some liken it to things like heroku or serverless or other “no ops” type of provisioning because they …
The Intersection Algorithm of Two Arrays using Hash Maps in C++/Java/JavaScript
Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = , nums2 = Output: Example 2: Input: nums1 = , nums2 = Output: Note: …
What Businesses Would Be Like if Web Hosting Didn’t Exist?
In today’s world, all businesses market their products through the Internet as they have to have a company website to attract more customers. For a business to be attractive, …
How to Find the Dominant Index in Array (Largest Number At Least Twice of Others)?
In a given integer array nums, there is always exactly one largest element. Find whether the largest element in the array is at least twice as much as every …
K Closest Points to Origin Algorithm by using Priority Queues in C++/Java
We have a list of points on the plane. Find the K closest points to the origin (0, 0). (Here, the distance between two points on a plane is …