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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Dot {
  6. 	double x;
  7. 	double y;
  8. 	double z;
  9. 	public Dot() {
  10. 		x = 0;
  11. 		y = 0;
  12. 		z = 0;
  13. 	}
  14. 	Dot (double a, double b, double c) {
  15. 		x=a;
  16. 		y=b;
  17. 		z=c;
  18. 	}
  19. }
  20. class Ideone{
  21. 	public static void main (String[] args) throws java.lang.Exception{
  22. 		Scanner in = new Scanner(System.in);
  23. 		Vector a = new Vector();
  24. 		double x, y, z, p;
  25. 		double sump=0;
  26. 		Dot sum = new Dot();
  27. 		while (in.hasNextDouble()){
  28. 			x = in.nextDouble();
  29. 			y = in.nextDouble();
  30. 			z = in.nextDouble();
  31. 			p = in.nextDouble();
  32. 			a.add(new Dot(x,y,z));
  33.  
  34. 			sum.x += x*p;
  35. 			sum.y += y*p;
  36. 			sum.z += z*p;
  37. 			sump+=p;
  38. 		}
  39. 		sum.x/=sump;
  40. 		sum.y/=sump;
  41. 		sum.z/=sump;
  42.  
  43. 		System.out.println(sum.x + " " + sum.y + " " + sum.z);
  44. 		Dot dot;
  45. 		for (int i=0; i<a.size(); i++)
  46. 		{
  47. 			dot = (Dot)a.elementAt(i);
  48. 			double l = Math.sqrt((dot.x-sum.x)*(dot.x-sum.x) + (dot.y-sum.y)*(dot.y-sum.y) + (dot.z-sum.z)*(dot.z-sum.z));
  49. 			System.out.println(l);
  50. 		}
  51. 	}
  52. }
Success #stdin #stdout 0.07s 4386816KB
comments (?)
stdin
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7 10 5 20
1 0 3 1
43 50 6 3
0 9 0 200
4 8 15 66
stdout
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1.8413793103448275 9.23448275862069 3.831034482758621
5.344517232368776
9.309898456732652
57.97037057365674
4.257051225524774
11.442437751129175
https://ideone.com/xotylt
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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