Leetcode 59. How To Go Around A Square Matrix In Spiral Order

Problem statement Given a positive integer n, generate an n x n matrix filled with elements from 1 to n^2 in spiral order. Example 1 Input: n = 3 Output: [[1,2,3],[8,9,4],[7,6,5]] Example 2 Input: n = 1 Output: [[1]] Constraints 1 <= n <= 20. So...