Delete the line containing the maximum element of the diagonal.

Please help determine the line that contains the maximum element of the diagonal, or at least stick your nose at the error I admit. I spend most of my time at work. I always delete the last line.

namespace App7 { class Program { public static int MaxDiagonalElement(int[,] matrix) { int max = int.MinValue; int n = (int)Math.Sqrt(matrix.Length); for (int i = 0; i < n; i++) { if (matrix[i, i] > max) { max = matrix[i, i]; } } return max; } static void Main(string[] args) { int[,] B = new int[5, 5]; int[,] C = new int[6, 6]; int[,] B1 = new int[4, 5]; int[,] C1 = new int[5, 6]; int n = 0, MaxElement, index = 0; Random Rnd = new Random(); Console.WriteLine("Matrix B"); Console.WriteLine(); for (int i = 0; i < B.GetLength(0); i++) { for (int k = 0; k < B.GetLength(1); k++) { B[i, k] = Rnd.Next(20); Console.Write(B[i, k] + "\t "); } Console.WriteLine(); } // Console.WriteLine(); for (int i = 0; i < 5; i++) { for (int k = 0; k < 5; k++) { } if (MaxDiagonalElement(B) == MaxDiagonalElement(B)) n = i; } for (int i = 0; i < 5; i++) { if (i == n) continue; for (int k = 0; k < 5; k++) { B[index, k] = B[i, k]; } index++; } for (int i = 0; i < 4; i++) { for (int k = 0; k < 5; k++) { Console.Write(B[i, k] + "\t "); } Console.WriteLine(); } Console.WriteLine(); Console.WriteLine("Matrix C"); Console.WriteLine(); /* for (int i = 0; i < C.GetLength(0); i++) { for (int k = 0; k < C.GetLength(1); k++) { C[i, k] = Rnd.Next(20); Console.Write(C[i, k] + "\t "); } Console.WriteLine(); }*/ } } }