For the structure type WORDCELL discussed in Example 6.

For the structure type WORDCELL discussed in Example 6.16, write the following programs:

a) A function create that returns a pointer to a structure of type WORDCELL.

b) A function insert(WORDCELL *pWC, int line) that takes a pointer to the structure WORDCELL and a line number, adds 1 to the number of occurrences for that word, and adds that line to the list of lines if it is not already there.