std::push_heap

 

C++

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Bibliothèque d'algorithmes

Fonctions Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Non-modification de la séquence des opérations Original: Non-modifying sequence operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
all_of any_of none_of (C++11) (C++11) (C++11) for_each count count_if mismatch equal	find find_if find_if_not (C++11) find_end find_first_of adjacent_find search search_n
Modification de la séquence des opérations Original: Modifying sequence operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
copy copy_if (C++11) copy_n (C++11) copy_backward move (C++11) move_backward (C++11) fill fill_n transform generate generate_n remove remove_if remove_copy remove_copy_if	replace replace_if replace_copy replace_copy_if swap swap_ranges iter_swap reverse reverse_copy rotate rotate_copy random_shuffle shuffle   (C++11) unique unique_copy
Des opérations de partitionnement Original: Partitioning operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
is_partitioned (C++11) partition partition_copy (C++11)	stable_partition partition_point (C++11)
Opérations de tri (sur les gammes triés) Original: Sorting operations (on sorted ranges) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
is_sorted (C++11) is_sorted_until (C++11) sort	partial_sort partial_sort_copy stable_sort nth_element
Opérations binaires de recherche (sur les gammes triés) Original: Binary search operations (on sorted ranges) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
lower_bound upper_bound	binary_search equal_range
Définir les opérations (sur les gammes triés) Original: Set operations (on sorted ranges) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
merge inplace_merge includes	set_difference set_intersection set_symmetric_difference set_union
Opérations Heap Original: Heap operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
is_heap is_heap_until (C++11) make_heap	push_heap pop_heap sort_heap
Minimum / maximum de fonctionnement Original: Minimum/maximum operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
max max_element min min_element minmax (C++11) minmax_element (C++11)	lexicographical_compare is_permutation (C++11) next_permutation prev_permutation
Opérations numériques Original: Numeric operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iota (C++11) accumulate inner_product	adjacent_difference partial_sum
Bibliothèque C Original: C library The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
qsort	bsearch

 

Déclaré dans l'en-tête <algorithm>
template<class RandomIt > void push_heap( RandomIt first, RandomIt last );	(1)
template<class RandomIt, class Compare > void push_heap( RandomIt first, RandomIt last,                 Compare comp );	(2)

Insère l'élément à la position de last-1 dans le segment de mémoire définie par le [first, last-1) gamme. La première version de la fonction utilise operator< de comparer les éléments, la seconde utilise la fonction de comparaison donnée comp .

Original:

Inserts the element at the position last-1 into the heap defined by the range [first, last-1). The first version of the function uses operator< to compare the elements, the second uses the given comparison function comp.

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Paramètres

first, last	-	la série d'éléments qui définissent le segment de mémoire à modifier Original: the range of elements defining the heap to modify The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
comp	-	comparison function which returns ​true if the first argument is less than the second. The signature of the comparison function should be equivalent to the following:  bool cmp(const Type1 &a, const Type2 &b); The signature does not need to have const&, but the function must not modify the objects passed to it. The types Type1 and Type2 must be such that an object of type RandomIt can be dereferenced and then implicitly converted to both of them. ​
Type requirements
- RandomIt must meet the requirements of RandomAccessIterator.
- The type of dereferenced RandomIt must meet the requirements of MoveAssignable and MoveConstructible.

Retourne la valeur

(Aucun)

Original:

(none)

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Complexité

Tout au plus 2 × log (N) comparaisons où N=std::distance(first, last) .

Original:

At most 2×log(N) comparisons where N=std::distance(first, last).

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Notes

Un tas' est un ensemble d'éléments [f,l) qui a les propriétés suivantes:

Original:

A heap is a range of elements [f,l) that has the following properties:

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• *f est le plus grand élément de la série

  Original:

  *f is the largest element in the range

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• un nouvel élément peut être ajouté à l'aide std::push_heap()

  Original:

  a new element can be added using std::push_heap()

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• le premier élément peut être retiré à l'aide std::pop_heap()

  Original:

  the first element can be removed using std::pop_heap()

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La disposition réelle des éléments est défini par l'implémentation .

Original:

The actual arrangement of the elements is implementation defined.

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Exemple

#include <iostream>#include <algorithm>   int main(){std::vector<int> v {3, 1, 4, 1, 5, 9};   std::make_heap(v.begin(), v.end());   std::cout<<"v: ";for(auto i : v)std::cout<< i <<' ';std::cout<<'\n';   v.push_back(6);   std::cout<<"before push_heap: ";for(auto i : v)std::cout<< i <<' ';std::cout<<'\n';   std::push_heap(v.begin(), v.end());   std::cout<<"after push_heap: ";for(auto i : v)std::cout<< i <<' ';std::cout<<'\n';}

Résultat :

v: 9 5 4 1 1 3 before push_heap: 9 5 4 1 1 3 6 after push_heap: 9 5 6 1 1 3 4

Voir aussi

pop_heap	supprime le plus grand élément à partir d'un tas Original: removes the largest element from a heap The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique)