Return the head node of the singly linked list with each pair of nodes swapped. If there is a last odd node leave it in place. Example: Input: 1 -> 2 -> 3 -> 4 -> 5 Output: 2 -> 1 -> 4 -> 3 -> 5
Lead Ios Engineer Interview Questions
3,141 lead ios engineer interview questions shared by candidates
How objects can send messages to each other in Objective-C
Giving array of words and user can input any letters. Write a function that returns all possible words that start with the input string. They are looking for optimum solution.
Build a simple app that involves displaying data that changes in realtime
The first Jedi question was this: given an unsorted array of numbers, like [1, 3, 5, 4, 2], write a function that takes an integer and returns true if there's any pair of numbers in that array that can be summed up to the input integer.
Delegates, Protocol, blocks, multithreading, GCD, project specific, some behavioural questions etc
Q: How would you explain protocol-oriented programming ? Q: Can you explain MVVM? Q: Explain what SOLID is?
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?
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