6. (25 points) A linked list is constructed to store integers. Each node is described by the following structure: struct node { int data; struct node *next; }; Assume a linked list containing a sentinel node has been constructed from the above nodes. Write a C function named count prototyped as int count(int value, struct node* sent) that accepts an integer and a pointer to the sentinel node; counts then number of data nodes (not including the sentinel) whose data value matches "value"; and returns that count. Return 0 if there are no nodes matching the given value