Exemplos de __push_heap em C++ (Cpp)

Exemplo n.º 1

Arquivo: _heap.c Projeto: Mephistophil/linked_list

inline void 
__push_heap_aux(_RandomAccessIterator __first,
                _RandomAccessIterator __last, _Distance*, _Tp*)
{
  __push_heap(__first, _Distance((__last - __first) - 1), _Distance(0), 
              _Tp(*(__last - 1)));
}

Exemplo n.º 2

Arquivo: stl_heap.cpp Projeto: Ricardo666666/STL

inline void 
__push_heap_aux(_RandomAccessIterator __first,
                _RandomAccessIterator __last, _Distance*, _Tp*)
{
	//__last - __first) - 1表示插入后元素的个数，也是容器的最后一个下标数字
	//新插入的元素必须位于容器的末尾
	__push_heap(__first, _Distance((__last - __first) - 1), _Distance(0), 
              _Tp(*(__last - 1)));
}

Exemplo n.º 3

Arquivo: _heap.c Projeto: Mephistophil/linked_list

void 
__adjust_heap(_RandomAccessIterator __first, _Distance __holeIndex,
              _Distance __len, _Tp __value) {
  _Distance __topIndex = __holeIndex;
  _Distance __secondChild = 2 * __holeIndex + 2;
  while (__secondChild < __len) {
    if (*(__first + __secondChild) < *(__first + (__secondChild - 1)))
      __secondChild--;
    *(__first + __holeIndex) = *(__first + __secondChild);
    __holeIndex = __secondChild;
    __secondChild = 2 * (__secondChild + 1);
  }
  if (__secondChild == __len) {
    *(__first + __holeIndex) = *(__first + (__secondChild - 1));
    __holeIndex = __secondChild - 1;
  }
  __push_heap(__first, __holeIndex, __topIndex, __value);
}

Exemplo n.º 4

Arquivo: stl_heap.cpp Projeto: Ricardo666666/STL

void 
__adjust_heap(_RandomAccessIterator __first, _Distance __holeIndex,
              _Distance __len, _Tp __value)
{
  _Distance __topIndex = __holeIndex;//根节点标号
  _Distance __secondChild = 2 * __holeIndex + 2;//获取子节点
  while (__secondChild < __len) {//若子节点标号比总的标号数小
    if (*(__first + __secondChild) < *(__first + (__secondChild - 1)))
      __secondChild--;//找出堆中最大关键字值的节点
	//若堆中存在比新根节点元素（即原始堆最后节点关键字值）大的节点,则交换位置 
    *(__first + __holeIndex) = *(__first + __secondChild);
    __holeIndex = __secondChild;//更新父节点
    __secondChild = 2 * (__secondChild + 1);//更新子节点
  }
  if (__secondChild == __len) {
    *(__first + __holeIndex) = *(__first + (__secondChild - 1));
    __holeIndex = __secondChild - 1;
  }
  __push_heap(__first, __holeIndex, __topIndex, __value);
}

Exemplo n.º 5

Arquivo: PriorityQueue.hpp Projeto: rueycheng/kinkaseki

    void __adjust_heap(_Iterator __first, _Distance __holeIndex,
		     _Distance __len, _Tp __value)
    {
	const _Distance __topIndex = __holeIndex;
	_Distance __secondChild = __holeIndex;
	while (__secondChild < (__len - 1) / 2) {
	    __secondChild = 2 * (__secondChild + 1);
	    if (comp(*(__first + __secondChild),
		     *(__first + (__secondChild - 1))))
		__secondChild--;
	    *(__first + __holeIndex) = *(__first + __secondChild);
	    __holeIndex = __secondChild;
	}

	if ((__len & 1) == 0 && __secondChild == (__len - 2) / 2) {
	    __secondChild = 2 * (__secondChild + 1);
	    *(__first + __holeIndex) = *(__first + __secondChild - 1);
	    __holeIndex = __secondChild - 1;
	}

	__push_heap(__first, __holeIndex, __topIndex, __value);
    }

Exemplo n.º 6

Arquivo: PriorityQueue.hpp Projeto: rueycheng/kinkaseki

    void push_heap(_Iterator __first, _Iterator __last)
    {
	_Value __value = *(__last - 1);
	__push_heap(__first, _Distance((__last - __first) - 1),
		    _Distance(0), __value);
    }