Due at 11.59 9pm O1 Monday, INOV. 20,2017 Purpose: Learn how to use the pointers to represent strings in C. Part 1: Write a function about string copy, the strcpy prototype "char* strcpy (char* strDest, const char* strSrc);". Here strDest is destination string, str-Src is source string. 1) Write the function strcpy, don't call C string library 2) Here strepy can copy str-Src to strDest, but why we use char* as the return value of strcpy