1. They asked from initial to end process of ios application development 2. Technical questions - (classes, structure, closure, delgates, protocol,extension, GCD, NSOperation Queue, Design Patterns, Push Notifications, Library Integrations, URLSession, access specifiers, generics etc )
Basic ios development questions on swift.
Swift fundamentals, threading, core data, memory dispatch, operation queue.
Lots of iOS/ Swift related Questions.
During Algorithmic interview at first I was asked about common things related to Computer Science: - what happens when user inputs query in the browser and presses Enter. This leaded us to DNS, 7 OSI levels, https/http, TLS, TCP/UDP connections, json/xml - how HashMap works and what's the time complexity of adding/getting an element. This leaded us to hash functions and collisions - OOP, inheritance and composition (advantages and disadvantages). The second part was the algorithmic task itself: "You are given an array A of non-negative numbers and a target sum S. Write an efficient function that finds one continuous sub-sequence of elements which sum up to precisely S. The return value should be a pair of array indices or an empty array."
What are different type of design patterns? Describe MVVM design pattern architecture and when to use MVC and when to use MVVM
Pourquoi nous rejoindre chez ALTEN ?
arr = [c,c,b,d,d,a,a,c,b,b,b,c,d,a] Given an array of characters, find the min length sub array within this array which has all the unique elements present in the array. unique = [c,b,d,a] worst = [c,a,a,a,a,d,d,d,b] //in this case the complete array becomes the min lenght sub array.. Write a function which accepts the char array and prints i,j of the sub array
GCD and operation queue, also gave little problem to solve
Longest Substring Without Repeating Characters
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