Problem 4:

Using pattern matching, write three functions, one for each of the following properties. Your functions should return true if the input list has the property and false otherwise.

• the lists first element is "bigred"
• the list has exactly two or four elements; do not use the length function
• the first two elements of the list are equal

Problem 5:

Write a function print_int_list : int list -> unit that prints its input list, one number per line. For example, print_int_list [1; 2; 3] should result in this output:

1

2

3

please use Ocaml for the coding