How I can create 2d list with tuples?-CodePudding

I am new to C# and now I need to rewrite my code for C to C#.

std::vector<std::vector<std::pair<int, bool>>> board(n);
for (int i = 0; i < m; i  ) 
{
    int node1 = 0, node2 = 0;
    std::cin >> node1 >> node2;
    board[node1 - 1].push_back(std::make_pair(node2 - 1, true));
    board[node2 - 1].push_back(std::make_pair(node1 - 1, false));
}

It is my try, but I can`t create an array with a specified length and add the values to it.

List<Dictionary<int, bool>> board = new List<Dictionary<int, bool>>();
        for (int i = 0; i < n; i  ) board.Add(new List<Dictionary<int, bool>>);
        for (int i = 0; i < m; i  )
        {
            String[] road = Console.ReadLine().Split(' ');
            int node1 = int.Parse(road[0]), node2 = int.Parse(road[1]);
            board[node1 - 1].Add(Dictionary<int, bool>(node2 - 1, true));
            board[node2 - 1].Add(Dictionary<int, bool>(node1 - 1, false));
        }

CodePudding user response：

Your C code allocates an n-element vector/List of vectors/Lists of (int, bool)- Tuples. The "verbatim" translation to to C# would be a List<List<(int, bool)>>, or with the n-element initialization e.g.:

var board = Enumerable.Range(0, n).Select(i => new List<(int, bool)>()).ToList();

CodePudding user response：

The equivalent to std::vector in c# is List<T>. For a tuple you can chose between Tuple and ValueTuple. So your type could be List<List<(int, bool)>>.

You may also consider using a multidimensional array. I.e. (int, bool)[,].