6. (Singly Linked List 23 points) Please write a C++ program that does the following 6.1 (4 points) Declare a structure called scoreNode, which contains score and next. Note that the data types of score and next is integer and a pointer of scoreNode 6.2 (3 points) Define a new data type called scorePtr, which is a pointer of scoreNode. 6.3 (6 points) Implement the following function that display a linked list: void print list (scorePtr root)