Python code for below hackerrank question server investment A network security administrator must protect networks at a number of locations from cyber$-$attacks. Initially, the ith network has num$\_$server$|?$ servers, and moneyli$]$ funds allocated for security upgrades. To upgrade a server in the ith network, it costs upgradeli$].$ Selling a server adds sellfifto available funds.

Given the arrays num$\_$servers, money, upgrade, and sell, each with n integers, determine the maximum number of servers that can be upgraded to ensure optimal network security. The result should be an array of n integers, where the ith integer represents the maximum number of upgraded servers for the ith network system.