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Convert 2D Array to 1D Array in C#
Set a two-dimensional array and a one-dimensional array −
int[,] a = new int[2, 2] {{1,2}, {3,4} }; int[] b = new int[4];
To convert 2D to 1D array, set the two dimensional into one-dimensional we declared before −
for (i = 0; i < 2; i++) { for (j = 0; j < 2; j++) { b[k++] = a[i, j]; } }
The following is the complete code to convert a two-dimensional array to one-dimensional array in C# −
Example
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Program { class twodmatrix { static void Main(string[] args) { int[, ] a = new int[2, 2] { { 1, 2 },{ 3, 4 } }; int i, j; int[] b = new int[4]; int k = 0; Console.WriteLine("Two-Dimensional Array..."); for (i = 0; i < 2; i++) { for (j = 0; j < 2; j++) { Console.WriteLine("a[{0},{1}] = {2}", i, j, a[i, j]); } } Console.WriteLine("One-Dimensional Array..."); for (i = 0; i < 2; i++) { for (j = 0; j < 2; j++) { b[k++] = a[i, j]; } } for (i = 0; i < 2 * 2; i++) { Console.WriteLine("{0}\t", b[i]); } Console.ReadKey(); } } }
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