Lab8-Puzzle15

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 L = 0, B = 0;
    for (int i = 0; i < b.length; i++) {
      for (int j = 0; j < b[0].length; j++) {
        int x = b[i][j];
        if (x == 0) {
          B = i + 1;
        }
        for (int l = i; l < b.length; l++) {
          int k = 0;
          if (l == i) {
            k = j;
          }
          while (k < b[0].length) {
            
            if (x > b[l][k] && b[l][k] != 0) {
              L = L + 1;
            }
          k++;
          }
        }
      }
    }
    if ((L + B) % 2 == 1) {
      return false;
    }
    return true;
  }
  //---------------------------------------------------
  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=0, CM=10, ST=16, KY=597, 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 ;