the problem is resolution

using System; using System.Collections.Generic; using System.IO; using System.Linq;

class Solution { static void Main(string[] args) { // Read the input string[] input = Console.ReadLine().Split(' '); int n = int.Parse(input[0]); int m = int.Parse(input[1]);

    int[] firstRow = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();

    // Call the method to compute the last row
    int[] lastRow = XorMatrix(n, m, firstRow);

    // Print the result
    Console.WriteLine(string.Join(" ", lastRow));
}

static int[] XorMatrix(int n, int m, int[] firstRow)
{
    int[] previousRow = firstRow;
    int[] currentRow = new int[n];

    // Generate each row from the second to the last row
    for (int i = 1; i < m; i++)
    {
        for (int j = 0; j < n; j++)
        {
            currentRow[j] = previousRow[j] ^ previousRow[(j + 1) % n];
        }

        // Update the previous row to the current row for the next iteration
        previousRow = (int[])currentRow.Clone();
    }

    // The last generated row is stored in previousRow
    return previousRow;
}

}

Code does not compile.

Here is XOR matrix problem solution in Python Java c++ and c programming - https://programs.programmingoneonone.com/2021/07/hackerrank-xor-matrix-problem-solution.html

Getting this error:

Solution.java:55: error: cannot find symbol for (int resultItr = 0; resultItr < result.length; resultItr++) { ^ symbol: variable result location: class Solution Solution.java:56: error: cannot find symbol bufferedWriter.write(String.valueOf(result[resultItr])); ^ symbol: variable result location: class Solution Solution.java:58: error: cannot find symbol if (resultItr != result.length - 1) { ^ symbol: variable result location: class Solution 3 errors

here is the first version, even main() has been corrected :

public class Solution {

    /*
     * Complete the xorMatrix function below.
     */
    static int[] xorMatrix(long m, int[] first_row) {
         
         int n = first_row.length;
         int save0;
         
         for( long i=1; i<m; i++){
            save0 = first_row[0];
            for( int j=0; j < n-1; j++){
               first_row[j] = first_row[j] ^ first_row[j+1];
            }            
            first_row[n-1] = first_row[n-1] ^ save0;
         }
         
         return first_row;
         

    }

    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        String[] nm = scanner.nextLine().split(" ");

        int n = Integer.parseInt(nm[0].trim());

        long m = Long.parseLong(nm[1].trim());

        int[] first_row = new int[n];

        String[] first_rowItems = scanner.nextLine().split(" ");

        for (int first_rowItr = 0; first_rowItr < n; first_rowItr++) {
            int first_rowItem = Integer.parseInt(first_rowItems[first_rowItr].trim());
            first_row[first_rowItr] = first_rowItem;
        }

        int[] result = xorMatrix(m, first_row);

        for (int resultItr = 0; resultItr < result.length; resultItr++) {
            bufferedWriter.write(String.valueOf(result[resultItr]));

            if (resultItr != result.length - 1) {
                bufferedWriter.write(" ");
            }
        }

        bufferedWriter.newLine();

        bufferedWriter.close();
    }
}