First round : 1. If you have int array, how you will sum of that in objective c? 2. If you have string containing too many html tags, how you will remove that tags from string? Second round : 1. What is apns 2. why we share data on social site 3. what is gps 4. how to get distance between 2 location 5. knowledge in swift 6. what is delegate 7. diff between json and xml 8. what is storyboard 9. which controller has delegate.
Initialize a UIAlertView
Basic iOS questions, such as: what is a delegate? How do you make network calls? How do you decode the data returned by a network call?
The meeting room problem.
Design an enumerator (e.g. named FBSuperEnumerator) that has two API's: - (id) nextObject; - (NSArray *) allObjects; // all objects remaining which, when given an input array that has content that can be either NSNumbers or NSArray, will expand all arrays embedded inside it. That is, given an input of something like @[@1, @[@2, @[@3, @4]], @[ ], @5], each call to nextObject will display items in the expected order.
Print Tree nodes level by level
Solve for n factorial using recursion.
How to pop two viewController at a time
Given an array where the otherwise sorted values are split into two ranges somewhere in the middle (e.g. [5,7,8,9,1,2,3]), come up with an algorithm that returns TRUE or FALSE if any given number X exists in that array.
a telephone keypad has letters associated with each number (e.g. 2 = abc, 3 = def); given a passphrase of "fb1" (e.g. one that you might use to log into a bank account), come up with an algorithm that would assemble an array that contains all the different possible letter combinations that, when typed into a telephone dial pad, would be equivalent to the original passphrase.
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