We've been wanting to ask this for a long time - "So what is Recursion?"According to LeetCode, Recursion is an approach to solving problems using a function that calls itself as a subroutine.
You might wonder how we can implement a function
Array
ArrayArray is a data structure consisting of a collection of elements, each identified by at least one array index or key. The index starts from 0 (0-based numbering). Insertion, removal and search operations in arrays are fast because of r
