comefrom: <awangdev>Longest Increasing Path in a Matrix_1.java
code: private boolean validateCoordinate(int[][] matrix, int x, int y, int nx, int ny) {
  
          return nx >= 0 && nx < matrix.length && ny >= 0 && ny < matrix[0].length
                  && matrix[x][y] < matrix[nx][ny];
      }
masked: private boolean var_0 ( int [ ] [ ] var_1 , int var_2 , int var_3 , int var_4 , int var_5 ) {
    return var_4 >= 0 && var_4 < var_1 . length && var_5 >= 0 && var_5 < var_1 [ 0 ] . length && var_1 [ var_2 ] [ var_3 ] < var_1 [ var_4 ] [ var_5 ] ;
  }
  