Beru-Taxi.java

import java.util.Scanner;
public class Taha {
    public static void main(String[] args) {
        Scanner in = new Scanner (System.in);
        double x1 = in.nextDouble(), min = 0;
        double y1 = in.nextDouble();
        int n = in.nextInt();
        double ar[] = new double [n];
        for (int i = 0; i < n; i++) {
            double x2 = in.nextDouble();
            double y2 = in.nextDouble();
            double speed = in.nextDouble();
            double x = Math.pow(x1 - x2, 2);
            double y = Math.pow(y1 - y2, 2);
            double dist = Math.sqrt(x + y);
            ar[i] = dist / speed; 
            if (min == 0) 
                min = ar[i];
            else if (ar[i] < min)
                min = ar[i];
        }
        for (int i = 0; i < n; i++) {
            if (ar[i] < min)
                min = ar[i];
        }
        System.out.printf("%.20f\n", min);
   }    
}