using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SoloLearn { class Program { static void Main(string[] args) { Random r = new Random(); string[,] Sudoku = new string[9, 9]; //9x9 Array. List> ColCompat = new List>(); //List of lists for each x. string cell; /*Variable that temporarly holds a random value gotten from GetRand class I created.*/ for (int y = 0; y < 9; y++) //Goes through each row. { for (int x = 0; x < 9; x++)//Goes through each column. { // cell = GetRand(); //This will atribute a random number from 1 to 9 cell = r.Next(1,10).ToString();//This will atribute a random number from 1 to 9 if (y == 0) /*It only need to create lists at y == 0, after that it only need to access them.*/ { List temp = new List(); //ColCompat[x].Add(temp); //ColCompat.Add(temp); //either add without index ColCompat.Insert(x, temp); //or insert with index ColCompat[x].Add(cell); /*I think this is where I'm getting it wrong, because I don't know how to use the list inside the list, just how to access it and work with the ColCompat but not its elements*/ Sudoku[y, x] = cell; } else //So any row below the first one. { cell = r.Next(1,10).ToString(); //GetRand(); while (ColCompat[x].Contains(cell)) {/*As long as the random number is one already contained in that column, it will keep atributing a new one to cell.*/ cell = r.Next(1,10).ToString();// GetRand(); Sudoku[y, x] = cell; } } } } //Display Array for (int y = 0; y < 9; y++) //Goes through each row. { string Row = ""; for (int x = 0; x < 9; x++)//Goes through each column. { Row = Row + Sudoku[y,x] + " "; } Console.WriteLine("y:" + y + "->" + Row); Row = ""; } } } }

Sudoku For Klappa