Looking at a smattering of leetcode mediums, I don't understand how someone being able to return "the elements of a 2d matrix in spiral order" (https://leetcode.com/problems/spiral-matrix/) or use Kadane's algortith to solve "k-concatenation max sum" (https://leetcode.com/problems/k-concatenation-maximum-sum/) pertains to building multiplayer software as part of a team.