Question

How to convert a character (flatten) matrix to a single string in C#

Answer 1

using System;
using System.Collections.Generic;
using System.Text;

class Program
{
    static string FlattenMatrix(List<List<char>> matrix) {
        var sb = new StringBuilder();

        foreach (var row in matrix) {
            foreach (var ch in row) {
                sb.Append(ch);
            }
        }

        return sb.ToString();
    }

    static void Main()
    {
        var matrix = new List<List<char>>
        {
            new List<char> { 'H','e','l','l','o' },
            new List<char> { ' ','W','o','r','l','d' },
            new List<char> { '!' }
        };

        string output = FlattenMatrix(matrix);

        Console.WriteLine("Flattened string: " + output);
    }
}



/*
run:

Flattened string: Hello World!

*/

 

70+ SQL courses for beginners and professionals