Codingame : Heat Detector Java

Heat_Detector.java

import java.util.*;
import java.io.*;
import java.math.*;

/**
 * Auto-generated code below aims at helping you parse
 * the standard input according to the problem statement.
 **/
class Player {

    private static final String UP = "U";
	private static final String DOWN = "D";
	private static final String LEFT = "L";
	private static final String RIGHT = "R";
	
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        int W = in.nextInt(); // width of the building.
        int H = in.nextInt(); // height of the building.
        int N = in.nextInt(); // maximum number of turns before game over.
        int X0 = in.nextInt();
        int Y0 = in.nextInt();

        int xl = 0;
        int yt = 0;
        int xr = W;
        int yb = H;
        
        // game loop
        while (true) {
            String BOMBDIR = in.next(); // the direction of the bombs from batman's current location (U, UR, R, DR, D, DL, L or UL)

            if (BOMBDIR.contains("L")) {
                xr = X0;
            }
            if (BOMBDIR.contains("R")) {
                xl = X0 + 1;
            }
            if (BOMBDIR.contains("U")) {
                yb = Y0;
            }
            if (BOMBDIR.contains("D")) {
                yt = Y0 + 1;
            }
            
            X0 = (xl + xr) / 2;
            Y0 = (yt + yb) / 2;
            System.out.println(X0 + " " + Y0);
        }
    }
}