2d Array from text file c# [closed]

Question

I have a text file that looks like this

1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100

in a 10 x 10 grid. using c# I need to take the text file and turn it into a 2d array of integers so that I can manipulate the integers on an independent level. Please help cant work it out,

Answer 1

String input = File.ReadAllText( @"c:\myfile.txt" );

int i = 0, j = 0;
int[,] result = new int[10, 10];
foreach (var row in input.Split('\n'))
{
    j = 0;
    foreach (var col in row.Trim().Split(' '))
    {
        result[i, j] = int.Parse(col.Trim());
        j++;
    }
    i++;
}

The indices will be 0-based so if you want to access 10th column in fourth row:

Console.WriteLine(result[3,9]); //40

Answer 2

A jagged array?

int[][] list = File.ReadAllLines("a.txt")
                   .Select(l => l.Split(' ').Select(i => int.Parse(i)).ToArray())
                   .ToArray();

EDIT

You can use JaggedToMultidimensional here

int[,] list2 = JaggedToMultidimensional(list);

Answer 3

Perhaps:

var result = File.ReadLines(path)
    .SelectMany((l, i) => l.Split()
                           .Select(s => new int[] { i, int.Parse(s) })
                           .ToArray())
    .ToArray();

Edit: Although this is a jagged array int[][].