Quest Software Interview Questions and Answers

Operations on Linked List and Array with their time complexities.

• Linked List operations: insertion (O(1)), deletion (O(1)), traversal (O(n)), search (O(n))

• Array operations: insertion (O(n)), deletion (O(n)), traversal (O(n)), search (O(n))

• Arrays have constant time access to elements while linked lists don't.

• Arrays are better for random access while linked lists are better for sequential access.

Optimized code for stack, queue, and tree operations.

• For stack operations, use an array or linked list and implement push, pop, and peek functions.

• For queue operations, use a circular buffer or linked list and implement enqueue, dequeue, and peek functions.

• For tree operations, use recursion and implement traversal algorithms such as inorder, preorder, and postorder.

• Optimize code by reducing unnecessary operations and u...read more