Booking.com IOS Developer Interview Questions and Answers

I enjoy hiking, reading, and cooking, which help me relax and stay creative while fostering personal growth.

• Hiking: I explore local trails every weekend, enjoying nature and staying fit.

• Reading: I read a mix of fiction and non-fiction, currently diving into historical novels.

• Cooking: I experiment with new recipes, recently trying my hand at Italian cuisine.

I will generate daily revenue for the company by implementing effective sales strategies and motivating my team to achieve their targets.

• Developing a sales plan and setting achievable targets

• Identifying potential customers and reaching out to them through various channels

• Providing excellent customer service to retain existing customers and generate referrals

• Motivating and training team members to improve their sales sk...read more

I approach tough times with resilience, strategic planning, and team collaboration to navigate sales pressure effectively.

• Maintain a positive mindset: I remind my team that challenges are opportunities for growth. For example, during a sales slump, I encouraged brainstorming sessions to identify new strategies.

• Set clear goals: I break down larger targets into manageable milestones, making it easier for the team to stay...read more

Design optimal data structures for LRU cache

• Use a doubly linked list to keep track of recently used items

• Use a hash table to store key-value pairs for quick access

• When an item is accessed, move it to the front of the linked list

• When the cache is full, remove the least recently used item from the back of the linked list and hash table

Convert a sorted array to balanced binary search tree

• Find the middle element of the array and make it the root of the tree

• Recursively construct the left subtree using the left half of the array

• Recursively construct the right subtree using the right half of the array

• Repeat until all elements are added to the tree

Reverse a singly linked list in groups of k in­place

• Divide the linked list into groups of k nodes

• Reverse each group of k nodes

• Connect the reversed groups to form the final linked list

A recursive routine to calculate a ^ n

• The base case is when n is 0, in which case the result is 1

• For any other value of n, the result is a multiplied by the result of a^(n-1)

• The recursive function should call itself with a^(n-1) as the new input

Design optimal data structure for never-ending stream of numbers for insertion, deletion, searching, kth largest and kth smallest.

• Use a balanced binary search tree like AVL or Red-Black tree for efficient insertion, deletion, and searching.

• Maintain two heaps, one for kth largest and one for kth smallest.

• For finding kth largest, use a min heap of size k and for kth smallest, use a max heap of size k.

• Alternatively, use a...read more

As a mechanical engineer, I choose corporate because it offers diverse opportunities, professional growth, and stability.

• Corporate provides a wide range of industries and sectors to work in, allowing me to explore different areas of mechanical engineering.

• Working in a corporate environment offers opportunities for professional growth through training programs, mentorship, and exposure to new technologies.

• Corporate jobs...read more