Need help in Scala.

Write a recursive procedure that returns true and only if the list has consecutive duplicates, i.e., a number occurs at least twice in succession. Note that the property is trivially "false" for lists of sizes 0 and 1. Example List(0, 1, 1, 2, 3, 4, 5, 2) has consecutive duplicates "1" followed by "1". List(0, 1, 0, 1, 0, 1, 0, 1) does not have consecutive duplicates (although it has duplicates). ]: def hasConsecutiveDupes (lst: NumList): Boolean = { // YOUR CODE HERE //??? ]: //BEGIN TEST val 11 = Cons(12, Cons (25, Cons (12, Nil))) assert(!hasConsecutiveDupes (11), "Test case 1: hasConsecutuveDupes (11) -- should return false") val 12 = Cons(14, Cons(14, Cons(13, 11 ))) assert (hasConsecutiveDupes (12), "Test case 2: hasConsecutiveDupes (12) -- should return true") val 13 = Cons(0, Cons(-2, Cons(-2, 11 ))) assert(hasConsecutiveDupes (13), "Test case 3: hasConsecutiveDupes (12) -- should return true") assert(!has ConsecutiveDupes (Nil), "Test case 4: hasConsecutiveDupes (Nil) -- should return false") val 15 - Cons(-1, Nil) assert(!hasConsecutiveDupes (15), "Test case 5: hasConsecutiveDupes (15) -- should return false") passed (7) //END TEST Write a recursive procedure that returns true and only if the list has consecutive duplicates, i.e., a number occurs at least twice in succession. Note that the property is trivially "false" for lists of sizes 0 and 1. Example List(0, 1, 1, 2, 3, 4, 5, 2) has consecutive duplicates "1" followed by "1". List(0, 1, 0, 1, 0, 1, 0, 1) does not have consecutive duplicates (although it has duplicates). ]: def hasConsecutiveDupes (lst: NumList): Boolean = { // YOUR CODE HERE //??? ]: //BEGIN TEST val 11 = Cons(12, Cons (25, Cons (12, Nil))) assert(!hasConsecutiveDupes (11), "Test case 1: hasConsecutuveDupes (11) -- should return false") val 12 = Cons(14, Cons(14, Cons(13, 11 ))) assert (hasConsecutiveDupes (12), "Test case 2: hasConsecutiveDupes (12) -- should return true") val 13 = Cons(0, Cons(-2, Cons(-2, 11 ))) assert(hasConsecutiveDupes (13), "Test case 3: hasConsecutiveDupes (12) -- should return true") assert(!has ConsecutiveDupes (Nil), "Test case 4: hasConsecutiveDupes (Nil) -- should return false") val 15 - Cons(-1, Nil) assert(!hasConsecutiveDupes (15), "Test case 5: hasConsecutiveDupes (15) -- should return false") passed (7) //END TEST