UVA 10056 Java

import java.util.*;
 
public class main{
  public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
    int cases = sc.nextInt();
    for(int i =0; i < cases; i++)
    {
    	int n = sc.nextInt();
    	double p = sc.nextDouble();
    	int l = sc.nextInt();
    	System.out.printf("%.4f\r\n", p == 0 ? p : (p * Math.pow(1-p, l-1))/(1 - Math.pow(1-p, n)));
    }
  }
};