trying leetcode, what is a node?

[solid trellis]

Constraints:

The number of nodes in each linked list is in the range [1, 100].
0 <= Node.val <= 9
It is guaranteed that the list represents a number that does not have leading zeros.

[frail dock]

A node in a linked list can be thought of as a container that holds a value and a pointer to the next node

[frail dock]

struct Node {
  int val;
  struct Node* next;
}

Something like this

[solid trellis]

is there any way I can replace nodes with arrays? it seems more complicated to use them but idk if it'd still work

[frail dock]

No, cause then it's not a linked list

I do not recommend doing leetcode without some foundational understanding of data structures and algorithms

[solid trellis]

thanks. some of the projects seemed fun but the two I looked at both need stdlib and use linked lists. I'll have to learn more before I mess around on there

[frail dock]

You're much better off learning with projects then moving to leetcode when you get more advanced

https://zenoix.com/posts/become-a-self-taught-coder/#projects-vs-leetcode-style-coding-exercises

Peep my opinion on projects vs leetcode for learning purposes