Write a function that prints all the elements of a list_t list. Write a function that returns the number of elements in a linked list_t list. Write a function that adds a new node at the beginning of a list_t list. Write a function that adds a new node at the end of a list_t list. Write a function that frees a list_t list. Write a function that prints You're beat! and yet, you must allow,\nI bore my house upon my back!\n before the main function is executed.