26 lines
675 B
Java
26 lines
675 B
Java
import java.util.Scanner;
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public class Main{
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static class point{
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double x,y;
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public void get(Scanner sc){
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x = sc.nextDouble();
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y = sc.nextDouble();
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}
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}
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static double dis(point a, point b){
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return Math.sqrt(Math.pow(a.x-b.x,2) + Math.pow(a.y - b.y, 2));
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}
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public static void main(String args[]){
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Scanner sc = new Scanner(System.in);
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int t = sc.nextInt();
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while(t-- > 0){
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point a = new point();
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point b = new point();
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a.get(sc);
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b.get(sc);
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System.out.printf("%.4f\n",dis(a,b));
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}
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sc.close();
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}
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}
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