apple
80 interview questions available
Merge overlapping time intervals
medium
Feb 12, 2026
Implement a debounce function
medium
Feb 12, 2026
Explain key React concepts and error handling
medium
Feb 12, 2026
Zero out duplicates and sort an array
medium
Feb 12, 2026
Compute conflicts and minimum meeting rooms
hard
Feb 12, 2026
Count subarrays with sum equals k
hard
Feb 11, 2026
Implement a lazy inorder traversal iterator
hard
Feb 11, 2026
Make tree iterators safe under concurrency
hard
Feb 11, 2026
Solve linked list, grid BFS, and median queries
medium
Jan 22, 2026
Design ad click aggregator and file sync service
medium
Jan 22, 2026