import java.lang.*;
import java.io.*;
import java.util.*;

//Random search tank(moving target) bombardment
public class Tank1 {

    public static void main(String[] args){

	Random rand = new Random(0); //Set random seed
	System.out.println("Turns to hit");

	for(int loop=0; loop<100; loop++){
	
	    int counter = 0;             //Initialize counter
	    System.err.println("Angle, Speed, Distance, Target");

	    while(true){ //Main Loop
		counter++;

		int target = (int)((rand.nextDouble()*1000)+1); //move target tank

		double angle = rand.nextDouble()*(Math.PI/2.0);
		double speed = rand.nextDouble()*(100);
		double distance = (speed * speed * Math.sin( angle * 2.0 ))/9.8 ;

		System.err.println(angle+", "+speed+", "+distance+", "+target);

		if(distance > (target-10) && distance < (target+10)) break; //if hit then exit loop

	    }//end while(true)

	    System.err.println("---HIT!!!---");
	    System.out.println(counter);

	}//end for(loop)

    }//end main()

}//end class Canon1