When should I use nested loops in programming?

When should I use nested loops in programming?

Nested loops are useful when you need to iterate over multiple dimensions, like a matrix or a list of lists.

Can you give me an example of a situation where nested loops are necessary?

Sure! If you want to compare every element in one list with every element in another, you'd use nested loops.

Are there any performance concerns I should be aware of with nested loops?

Yes, nested loops can lead to higher time complexity, especially if both loops iterate over large datasets.

How can I optimize nested loops in my code?

You can optimize by reducing the number of iterations, using data structures like hash maps, or breaking early when possible.