Source code for submission s1143

Go to diff to previous submission

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
 
 
public class Grasshop {
	private static BufferedReader bfr = new BufferedReader(new InputStreamReader(System.in));
 
	public static int maxX;
	public static int maxY;
 
	public static void rekurze(int[][] pole, int x, int y, int hodnota) {
		if (hodnota >= 5) return;
		if (x<0) return;
		if (x>=maxX) return;
		if (y<0) return;
		if (y>=maxY) return;
 
		else {
			if ((pole[x][y] > hodnota) || (pole[x][y] == 0)) {
				pole[x][y] = hodnota;
				rekurze(pole, x+2, y+1, hodnota+1);
				rekurze(pole, x-2, y+1, hodnota+1);
				rekurze(pole, x+2, y-1, hodnota+1);
				rekurze(pole, x-2, y-1, hodnota+1);
				rekurze(pole, x+1, y+2, hodnota+1);
				rekurze(pole, x-1, y+2, hodnota+1);
				rekurze(pole, x+1, y-2, hodnota+1);
				rekurze(pole, x-1, y-2, hodnota+1);
			}
		}
 
	}
 
	public static void main(String[] args) {
		while (true) {
 
			try {
				String linka;
				linka = bfr.readLine();
				if (linka == null) break;
				String ln[] = linka.split(" ");
				if (ln.length < 6) break;
 
				maxX = Integer.parseInt(ln[0]);
				maxY = Integer.parseInt(ln[1]);
				int sX = Integer.parseInt(ln[2])-1;
				int sY = Integer.parseInt(ln[3])-1;
				int cX = Integer.parseInt(ln[4])-1;
				int cY = Integer.parseInt(ln[5])-1;
 
				if ((sX == cX) && (sY == cY)) {
					System.out.println("0");
					continue;
				}
 
				if ((maxX < 2) || (maxY < 2)) {
					System.out.println("impossible");
					continue;
				}
 
				int[][] pole = new int[maxX][maxY];
 
				rekurze(pole, cX, cY, 0);
 
				pole[cX][cY] = 9;
				//pole[sX][sY] = 7;
/*
				for(int i=0; i<maxY; i++) {
					for(int j=0; j<maxX; j++) {
						System.out.print(pole[j][i]);
					}
					System.out.println();
				}
*/
				int pocetSkoku = 0;
 
				while (pole[sX][sY] == 0) {
					pocetSkoku++;
					pole[sX][sY] = 8;
					int rozX = cX-sX;
					int rozY = cY-sY;
 
					if (Math.abs(rozX) + Math.abs(rozY) < 2) {
						pocetSkoku = Integer.MAX_VALUE;
						break;
					}
 
					if (Math.abs(rozX) > Math.abs(rozY)) {
						int skX, skY;
 
						if (rozX > 0) skX = 2;
						else skX = -2;
 
						if (rozY == 0) {
							if ((sY-1) < 0) skY = 1;
							else skY = -1;
						} else {
							if (rozY > 0) skY = 1;
							else skY = -1;
						}
 
						sX += skX;
						sY += skY;
 
					} else {
						int skX, skY;
 
						if (rozY > 0) skY = 2;
						else skY = -2;
 
						if (rozX == 0) {
							if ((sX-1) < 0) skX = 1;
							else skX = -1;
						} else {
							if (rozX > 0) skX = 1;
							else skX = -1;
						}
 
						sX += skX;
						sY += skY;
					}
 
				}
 
				if (pocetSkoku == Integer.MAX_VALUE) {
					System.out.println("impossible");
				} else {
					pocetSkoku += pole[sX][sY];
					System.out.println(pocetSkoku);
				}
/*
				for(int i=0; i<maxY; i++) {
					for(int j=0; j<maxX; j++) {
						System.out.print(pole[j][i]);
					}
					System.out.println();
				}
*/
			} catch (IOException e) {
				break;
			}
		}
 
	}
}
 

Diff to submission s1132

--- c4.s1132.cteam113.grasshop.java.0.Grasshop.java
+++ c4.s1143.cteam113.grasshop.java.0.Grasshop.java
@@ -3,6 +3,4 @@
 import java.io.InputStreamReader;
 
-import org.omg.PortableInterceptor.INACTIVE;
-
 
 public class Grasshop {
@@ -43,4 +41,5 @@
                                 if (linka == null) break;
                                 String ln[] = linka.split(" ");
+                                if (ln.length < 6) break;
 
                                 maxX = Integer.parseInt(ln[0]);
@@ -140,4 +139,5 @@
 */
                         } catch (IOException e) {
+                                break;
                         }
                 }