Lab8-Puzzle15

JLab>javac FifteenPuzzle.java
JLab>
JLab>java Selftest 

JLab> testPuzzle15 : ok ok ok ok ok ok ok ok ok ok  (10.0/10.0)
JLab> : -----------------------------
JLab> : ?????? 10.0 ????? (???? 10.0)
JLab> : -----------------------------
JLab> :<POINT>10.0</POINT> (<TOTAL>10.0</TOTAL> )
JLab>

public class FifteenPuzzle {
  //---------------------------------------------------
  public static boolean solvable15Puzzle(int[][] b) {
    int c[] = new int[15];
    int d = 0;
    int count = 0;
    int k = 0;
    for (int i = 0; i < b.length; i++) {
      for (int j = 0; j < b[0].length; j++) {
        if (b[i][j] != 0) {
          c[d] = b[i][j];
          d++;
        } else k = i + 1;
      }
    }
    for (int i = 0; i < c.length - 1; i++) {
      for (int j = i + 1; j < c.length; j++) {
        if (c[i] > c[j] && c[i] != 0 && c[j] != 0) {
          count++;
        }
      }
    }
    return ((count + k) % 2 == 0);
   
  }
  //---------------------------------------------------
  public static void main(String[] a) {
    int[][] ok = { { 1, 2, 3, 4 },
                    { 5, 6, 7, 8 },
                    { 9, 10, 12, 15 },
                    { 13, 14, 11, 0 } };
    int[][] nok = { { 1, 2, 3, 4 },
                    { 5, 6, 7, 8 },
                    { 9, 10, 11, 12 },
                    { 13, 15, 14, 0 } };
    System.out.println(solvable15Puzzle(ok));
    System.out.println(solvable15Puzzle(nok));

  }
}

SM=1, CM=55, ST=106, KY=1796, TR=60:00
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;