The following main function is from a C++ program that includes calls to function(s) charline, producing the output shown int main() charLine(): charLine(): charline (s',10): return 0; Output from running the program (note: the first two output lines each contain 40 characters, the third line contains 10 characters) SSSSSS$$$$ a) Using default argument(s), write the C++ prototype and definition of charline that produces the output shown. b) Using overloaded functions, write the C++ definition of charline that produce the output shown