How can I convert a text file into a list of int arrays

Question

I have a text file containing the following content:

0 0 1 0 3 
0 0 1 1 3 
0 0 1 2 3 
0 0 3 0 1 
0 0 0 1 2 1 1 
0 0 1 0 3 
0 0 1 1 3 
0 0 1 2 3 
0 0 3 0 1 
0         


        

Answer 1

var resultList = new List();
File.ReadAllLines("filepath") 
    .ToList()
    .ForEach((line) => {
                            var numbers = line.Split()
                                              .Select(c => Convert.ToInt32(c));
                            resultList.AddRange(numbers); 
                        });