Follow a linked list
Level 7: Lists & trees. Paper 4 stores a linked list in a 2D array: column 0 is the data, column 1 is the next index. -1 means the end.
Level 7: Lists & trees. Paper 4 stores a linked list in a 2D array: column 0 is the data, column 1 is the next index. -1 means the end.