package no076; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int k = sc.nextInt(); double[][] a = new double[k+1][k+1]; double[] b = new double[k+1]; for(int i=0;i Math.abs(B[pivot][i])) { pivot = j; } } swapRow(B, i, pivot); if (Math.abs(B[i][i]) < EPS) { return null; } for(int j=i+1;j<=n;j++) { B[i][j] /= B[i][i]; } for(int j=0;j