Question

I have an int array with to dimentions:

int[,] intArray2D = new int[3,3];

I would like to have two methods such as:

int[,] removeLine(int[,] array, int arrayColumnsCount, int lineToRemove){...}
int[,] removeColumn(int[,] array, int arrayColumnsCount, int columnToRemove){...}

So, having the array:

1 2 3
4 5 6
7 8 9

Calling the removeLine method with lineToRemove = 1 I must get the array:

1 2 3
7 8 9

Calling the columnLine method with columnToRemove = 1 I must get the array:

1 3
4 6
7 9

What are your implementation advices?

Thanks

RT

Answer 1

Because arrays aren’t intended for situation where you add & remove items, you should use a more appropriate data structure.

LinkedList is the best one to use when you expect there will be lots of adds and removes in the middle or the start of the list.

List works fine when you’re only adding and removing from the end.

You’d use this by importing:

using System.Collections.Generic;

and coding:

LinkedList<LinkedList<int>> grid = new LinkedList<LinkedList<int>>()
grid.Add(new LinkedList<int>()); //repeat for each column / row