C++ please. Ty.

This assignment tests the concepts of functions arrays loops Objective Todays lab is a bit different than the last few. We will only be implementing a few functions. The provided main.cpp file will be used to TEST your functions. t is recommended that for each function you get the simplest case working and add handling of the other cases once everything else works. This is called stepwise refinement. implement each function prototyped in functions.h that has a TODO. I recommend you start with the starter code for functions.cpp. Read the provided preconditions and postconditions, ask questions if you do not understand them. Your implementation will be checked for compliance to these conditions. You may assume the precondition is ALWAYS met, you do not need to confirm the precondition is true. You may modify the main function, however, you will only hand in functions.cpp. You will want to avoid modifying functions.h, since modifications here may make your code unable to be compiled by the grader. starter functions.cpp #include #include #include #include #include "functions.h" double standardDeviation(const double nums[], unsigned int count) { return 0; //TODO: remove this stub when implemented } void printArray(const double nums[], unsigned int count, unsigned short precision/*=3*/ ) { } bool isInteger (const std::string &s) { return true; //TODO: remove this stub when implemented } long long stringToLong(const std::string& s) { return 0; //TODO: remove this stub when implemented } void swapNumbers (long& x, long& y) { }