C++

Implement ONLY the following function given the pre and post conditions.. (Note: including additional code than the function will impact grade). A precondition is what should be true before calling a function to get the correct results. A post condition is what is true AFTER the function is done.

// Precondition : items is an array of count integers // Postcondition : Returns a vector containing all the original // items with each value getting added by addend. // (Note: no print statements and the original items list should not be modified) // For example, if we call: // do_add([2,4],2,3) will return [5,7] std::vector do_add(const int items[], unsigned int count, int addend);