Programming some game

Okay.. i'm a noob at C and i'm trying to do some game.
It's a game for 2 players. The first player inputs 4 numbers. The 2nd player tries to guess which numbers those are by inputting numbers too. If there is a correct number in wrong order, 0 will print. If there is a correct number in correct order, 1 will print. Game will end if the 2nd player gets 1111 or uses up all 10 turns.

I can't understand the array stuff much.. help me.

>>34
Hope UR happy now!

compareDigits :: [Int] -> [Int] -> [Int]
compareDigits xs ys =
              if null ys then []
                 else map (\(a,b) -> if a == b then 1
                            else if elem a ys then 0
                                  else -1) (zip xs ys)