Ejemplo n.º 1
0
        public void Remove(PQHandle handle)
        {
            Debug.Assert(_initialized);

            int hCurr = handle._handle;

            Debug.Assert(hCurr >= 1 && hCurr <= _max && _handles [hCurr]._key != null);

            int curr = _handles [hCurr]._node;

            _nodes [curr] = _nodes [_size];
            _handles [_nodes [curr]]._node = curr;

            if (curr <= --_size)
            {
                if (curr <= 1 || _leq(_handles [_nodes [curr >> 1]]._key, _handles [_nodes [curr]]._key))
                {
                    FloatDown(curr);
                }
                else
                {
                    FloatUp(curr);
                }
            }

            _handles [hCurr]._key  = null;
            _handles [hCurr]._node = _freeList;
            _freeList = hCurr;
        }
Ejemplo n.º 2
0
        public void Remove(PQHandle handle)
        {
            Debug.Assert(_initialized);

            int curr = handle._handle;

            if (curr >= 0)
            {
                _heap.Remove(handle);
                return;
            }
            curr = -(curr + 1);
            Debug.Assert(curr < _max && _keys [curr] != null);

            _keys [curr] = null;
            while (_size > 0 && _keys[_order[_size - 1]] == null)
            {
                --_size;
            }
        }