LeetCode Q 954 - Array of Doubled PairsGiven an array of integers A with even length, return true if and only if it is

LeetCode Q 1006 - Clumsy FactorialNormally, the factorial of a positive integer n is the product of all positive intege

prev Angular Basics II - Decorator & Directive1. Decorator(Annotation)Annotation or Decorator is esssentially a func

1. What is proxy?Definition in Wikipedia is: A proxy is a class functioning as an interface to something else. The prox

LeetCode Q 1009 - Complement of Base 10 IntegerEvery non-negative integer N has a binary representation. For example, 5

LeetCode Q 1041 - Robot Bounded In CircleOn an infinite plane, a robot initially stands at (0, 0) and faces north. The