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import java.util.List;
import java.util.ArrayList;

public class MissingNum {
    public static List<Integer> findDisappearedNumbers(int[] nums) {
        List<Integer> res = new ArrayList<Integer>();

        boolean[] counter = new boolean[nums.length+1];
        for (int i = 0; i < nums.length; i++) {
            counter[nums[i]] = true;

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# Xcode temp files dir 
~/Library/Developer/Xcode/DerivedData
~/Library/Developer/Xcode/Archives
~/Library/Developer/Xcode/iOS DeviceSupport
~/Library/Developer/CoreSimulator
~/Library/Caches/com.apple.dt.Xcode
~/Library/Application Support/MobileSync/Backup

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#user cache file
echo "cleaning user cache file from ~/Library/Caches"
rm -rf ~/Library/Caches/*
echo "done cleaning from ~/Library/Caches"
#user logs
echo "cleaning user log file from ~/Library/logs"
rm -rf ~/Library/logs/*
echo "done cleaning from ~/Library/logs"
#user preference log
echo "cleaning user preference logs"

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func levelOrder(_ root: TreeNode?) -> [[Int]] {
      var queue = [TreeNode]()
      var res = [[Int]]()
      if root == nil {
          return res
      }

      queue.append(root!)
      while !queue.isEmpty {
          var size = queue.count

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let inOrder = [1, 2, 3, 4, 5, 6, 7, 8, 9]

func createBST(inOrder: [Int]) -> TreeNode? {
    return helper(inOrder, start: 0, end: inOrder.count-1)
}

func helper(arr: [Int], start: Int, end: Int) -> TreeNode? {
    if start > end {
        return nil
    }

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def answer(food, grid):
    size = len(grid)
    solution = [[set() for x in range(size+1)] for y in range(size+1)]
    solution[0][0] |= {grid[0][0]}
    print solution
    for i in range(size):
        for j in range(size):
            val = grid[i][j]
            if i != 0:
                solution[i][j] |= {val + x for x in solution[i-1][j] if (val + x) <= food}

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def answer(x):
	rems = to_base_3(x)
# 	print rems
	left, right = balance_rems(rems)
# 	print left, right
	ans = display(left, right)
	return ans

# convert to base 3 numerical system
def to_base_3(n):

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/*
* For iOS 7 or later
* 1. In IB, set keyboard attr. to "Dismiss on drag" 
*         or in ViewDidLoad write   
*         self.tableView.keyboardDismissMode = UIScrollViewKeyboardDismissMode.OnDrag
*   https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIScrollView_Class/#//apple_ref/c/tdef/UIScrollViewKeyboardDismissMode
* 2. Add UITapGestureRecognizer in ViewDidLoad 
*/

override func viewDidLoad() {

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//test decoding
mImageView.setImageDrawable(getResources().getDrawable(R.drawable.no_image));
String s = PictureDb.getPictureBase64Str(picName);
Log.v(LOG_TAG, "get the base64 String and start to decode");
byte[] decodedByte = Base64.decode(s, 0);
Bitmap nBitmap = BitmapFactory.decodeByteArray(decodedByte, 0, decodedByte.length); 			
mImageView.setImageBitmap(nBitmap);
Log.v(LOG_TAG, PictureDb.getPictureName(picName));	

Type listType = new TypeToken<List<String>>() {}.getType();

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//create image instance
//with image name from bundle
var image : UIImage = UIImage(named:"imageNameHere")!
var imageData = UIImagePNGRepresentation(image)

//OR with path
var url:NSURL = NSURL(string : "urlHere")!
var imageData:NSData = NSData.dataWithContentsOfURL(url, options: nil, error: nil)

//Encoding