STL: heap相关算法

make_heap

Converts elements from a specified range into a heap in which the first element is the largest and for which a sorting criterion may be specified with a binary predicate.

template<class RandomAccessIterator>
   void make_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last
   );
template<class RandomAccessIterator, class BinaryPredicate>
   void make_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last,
      BinaryPredicate _Comp
   );

pop_heap

Removes the largest element from the front of a heap to the next-to-last position in the range and then forms a new heap from the remaining elements.

template<class RandomAccessIterator>
   void pop_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last
   );
template<class RandomAccessIterator, class BinaryPredicate>
   void pop_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last,
      BinaryPredicate _Comp
   );

push_heap

Adds an element that is at the end of a range to an existing heap consisting of the prior elements in the range.

template<class RandomAccessIterator>
   void push_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last
   );
template<class RandomAccessIterator, class BinaryPredicate>
   void push_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last,
      BinaryPredicate _Comp
   );

注，The element must first be pushed back to the end of an existing heap and then the algorithm is used to add this element to the existing heap.

sort_heap

Converts a heap into a sorted range

template<class RandomAccessIterator>
   void sort_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last
   );
template<class RandomAccessIterator, class Predicate>
   void sort_heap(
      RandomAccessIterator _First, 
      RandomAccessIterator _Last,
      Predicate _Comp
   );