How to convert a 2D array into 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();       }    } }
Updated on: 2020-06-21T13:42:39+05:30

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