What are the differences between nested loops and iterators?

What are the differences between nested loops and iterators?

Nested loops are loops within loops, while iterators are objects that allow you to traverse through a collection.

Can you give me an example of when to use nested loops?

Sure! Nested loops are useful when you need to compare elements in a two-dimensional array, like a matrix.

And what about iterators? When should I use them?

Iterators are great for traversing collections without exposing the underlying structure, making your code cleaner.

Are there performance differences between the two?

Yes, nested loops can lead to higher time complexity, especially with large datasets, while iterators can be more efficient.