help me understand and answer question 7 for data structures. NOTE: not the whole code

 

QUESTION 7 Given the data definitions and figure, code the C++ statements to accomplish the task described. Include the definitions of all additional variables used. struct real int num; rec *next; rec *begin, *p1, *end; begin num next num next 45 20 p1 Task: Code C++ required to make the first node of the list point to the last node. 3 points Sa num next num next 35 15 NULL end