data-structures Archives

In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code: int** someNumbers = malloc(arrayRows*sizeof(int*)); for ...

May 30, 2022
0 Comments

Java, Programming

IT Nursery

Get keys from HashMap in Java

I have a Hashmap in Java like this: private Map<String, Integer> team1 = new HashMap<String, Integer>(); Then I fill it like this: team1.put("United", ...

May 29, 2022
0 Comments

Programming, Python

IT Nursery

How is set() implemented?

I’ve seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of ...

May 29, 2022
0 Comments

arrays, Programming

IT Nursery

Array versus linked-list

Why would someone want to use a linked-list over an array? Coding a linked-list is, no doubt, a bit more work than using ...

May 29, 2022
0 Comments

arrays, Programming

IT Nursery

Why do we use arrays instead of other data structures?

As I was programming, I haven’t seen an instance where an array is better for storing information than another form thereof. I had ...

May 28, 2022
0 Comments