code: public void decreaseValues(int from)
      {
          for (int state = 1; state < getBaseArraySize(); ++state)
          {
              int leaf = getBase(state) + UNUSED_CHAR_VALUE;
              if (1 < leaf && leaf < getCheckArraySize() && getCheck(leaf) == state)
              {
                  int value = getLeafValue(getBase(leaf));
                  if (value >= from)
                  {
                      setBase(leaf, setLeafValue(--value));
                  }
              }
          }
      }
docs: 将值大于等于from的统一递减1<br>
  
  @param from