Different Distances Solution:

import java.util.Scanner;

public class Kattis {
  public static void main(String[] args) {
    double x1, x2, y1, y2, p, absx, absy, sum;
    Scanner sc = new Scanner(System.in);
    for (int i = 0; i < 1000; i++) {
      x1 = sc.nextDouble();
      if (x1 == 0)
        break;
      y1 = sc.nextDouble();
      x2 = sc.nextDouble();
      y2 = sc.nextDouble();
      p = sc.nextDouble();
      absx = x1 - x2 > 0 ? x1 - x2 : x2 - x1;
      absy = y1 - y2 > 0 ? y1 - y2 : y2 - y1;
      sum = Math.pow(absx, p) + Math.pow(absy, p);
      System.out.println(Math.pow(sum, (1/p)));
    }
  }
}