Static versus Dynamic Array - Common Operations – Part 3

The video tutorial explains dynamic arrays, their memory allocation, and how they expand using powers of two. It covers the time complexity of operations like insertion and deletion, highlighting the differences between static and dynamic arrays. The tutorial emphasizes understanding these concepts for efficient programming.

What is a key advantage of dynamic arrays over static arrays?

• They are easier to implement.

• They can change size dynamically.

• They allow faster access to elements.

• They use less memory.

How does a dynamic array decide the amount of extra memory to reserve?

• Using the smallest power of two greater than the current size.

• Based on the current number of elements.

• By doubling the current memory size.

• By adding a fixed number of slots.

If a dynamic array has 5 elements, how many memory slots will it reserve?

• 8 slots

• 5 slots

• 6 slots

• 10 slots

What is the average time complexity for inserting an element in a dynamic array?

• O(1)

• O(log n)

• O(n^2)

• O(n)

In the worst-case scenario, what is the time complexity for inserting an element at the beginning of a dynamic array?

• O(1)

• O(n)

• O(log n)

• O(n^2)

What is the time complexity for deleting the last element of a dynamic array?

• O(n^2)

• O(1)

• O(n)

• O(log n)

Why is it important to understand the complexities of dynamic arrays?

• To optimize memory usage.

• To reduce the cost of hardware.

• To improve the speed of operations.

• To make informed decisions in software development.