3. [6 points] Below is a program that copies a string into another string by using the function mystrepy. Complete the code by filling in blanks so the program will run successfully and correctly. Use only the pointer notation in the function mystrcpy to process the array elements #include using namespace std; void mystrcpy(char , char *) int main() char a[6]- "Hello" char b[6]: mystrcpy (b,a); / cout