12345678910111213141516171819202122 |
- package aoj.contest1398;
- import java.io.PrintWriter;
- import java.util.Scanner;
- public class C {
- static Scanner cin = new Scanner(System.in);
- static PrintWriter cout = new PrintWriter(System.out);
- public static void main(String[] args) {
- while (cin.hasNext()) {
- double x1 = cin.nextDouble();
- double y1 = cin.nextDouble();
- double x2 = cin.nextDouble();
- double y2 = cin.nextDouble();
- cout.println(String.format("%.2f", Math.hypot(x1 - x2, y1 - y2)));
- }
- cin.close();
- cout.close();
- }
- }
|