What is the difference between dynamic and static variables?

What is the difference between dynamic and static variables?

Dynamic variables are allocated at runtime and can change in size, while static variables are fixed in size and allocated at compile time.

Can you give me an example of each?

Sure! A static variable in C might be defined as 'static int count = 0;', while a dynamic variable could be created using 'int *arr = malloc(size * sizeof(int));'.

When should I use dynamic variables?

Use dynamic variables when you need flexibility in memory allocation, such as when the size of data isn't known at compile time.

Are there any downsides to using dynamic variables?

Yes, dynamic variables can lead to memory leaks if not properly managed, and they may introduce overhead due to allocation and deallocation.