Problem Statement: You are designing a system to store a dynamically growing list of customer orders. Analyze the time complexity of inserting a new order at the beginning of an Array versus a Singly Linked List to determine the better choice.

Problem Statement: Trace the state of a Stack (initially empty) after performing the following sequence of operations: push(5), push(10), pop(), push(15), peek(). Determine the final item printed and the final state of the stack.

Problem Statement: Compare the process and time complexity of searching for a specific employee ID in a balanced Binary Search Tree (BST) versus a Hash Table.

Problem Statement: Given an array [10, 24, 35, 42, 59], trace the algorithm to find the target number 42 and return its index.

Problem Statement: A 3x3 matrix representing a grid is stored as an array of arrays. Determine the syntax to access the number 6.

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]