need help on c++ program please!!!

Your job as Computer Scientists, and program developers, is to create robust functions that ultimately satisfy some conditions. These conditions are, at a minimum, requirements for functionality -e.g. your functions should handle all of the "what-if" conditions a.k.a-corner cases. To get into the habit of doing this, this project asks you to develop 5 stand-alone functions/algorithms related to recursion and hashing, as well as unit tests for each of them. You must implement: Quick Sort (recursive) to sort arrays or vectors Binary Search (recursive) to search arrays or vectors Merge Sort (recursive) to sort arrays of vectors Text/Int To Int Hash (hashing) to convert strings (