#Algorithm

Solve a dynamic programming problem that is categorized as medium to hard. Ensure you understand the problem constraints and provide a robust solution.

Solve the Aggressive Cows problem, where you need to place cows in stalls under specific constraints. Refer to the problem description [here](https://lnkd.in/ggcBrZRH) for more information.

In a stream of characters, determine which character has the kth highest frequency. If two characters have the same frequency, return the one that appears first in the stream. Example: If the input is 'abracadabra', k = 2, the output should be 'a'.

Given a string, find all the anagrams that can be formed using the characters of that string. Return a list of all grouped anagrams sorted in a specific order.

Solve the Array Intersection problem. Please discuss your approach and consider edge cases in your solution.