Server Investment π³
A network security administrator must protect networks at several locations from cyber-attacks.
Initially, the nth network has num_servers[i] servers, and money[i] funds allocated for security upgrades. To upgrade a server in the n^{th} network, it costs upgrade[i]. Selling a server adds sell[i] to available funds.
Formally, 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.
1Example 1

Constraints
Limits and guarantees your solution can rely on.
Unknwon for nowww