lnikon · November 23, 2018 18:05
diff --git a/haskell_question_1_to_10.txt b/haskell_question_1_to_10.txt
 1) Find the last element of a list.
 xs = [1, 2, 3, 4]
 last xs

 2) Find the last but one element of a list. 
 xs = [1, 2, 3, 4]
 last (init xs)

 3) Find the K'th element of a list. The first element in the list is number 1. 
 xs = [1, 2, 4, 3, 5, 6, 8, 7]
 elementAt xs k = if k > 0 then elementAt (tail xs) (k - 1) else (last (reverse xs))
	1) Find the last element of a list.
	xs = [1, 2, 3, 4]
	last xs

	2) Find the last but one element of a list.
	xs = [1, 2, 3, 4]
	last (init xs)

	3) Find the K'th element of a list. The first element in the list is number 1.
	xs = [1, 2, 4, 3, 5, 6, 8, 7]
	elementAt xs k = if k > 0 then elementAt (tail xs) (k - 1) else (last (reverse xs))