std::is_heap_until
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<metanoindex/>
<tbody> </tbody>| Dclar dans l'en-tte <algorithm>
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template< class RandomIt > RandomIt is_heap_until( RandomIt first, RandomIt last ); |
(1) | (depuis C++11) |
template< class RandomIt, class Compare > RandomIt is_heap_until( RandomIt first, RandomIt last, Compare comp ); |
(2) | (depuis C++11) |
Examine la porte et
[first, last) trouve le plus grand nombre au dbut first qui est' tas. La premire version de la fonction utilise operator< de comparer les lments, la seconde utilise la fonction de comparaison donne comp .Original:
Examines the range
[first, last) and finds the largest range beginning at first which is heap. The first version of the function uses operator< to compare the elements, the second uses the given comparison function comp.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Paramtres
| first, last | - | l'ventail des lments examiner
Original: the range of elements to examine 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:
The signature does not need to have |
| Type requirements | ||
-RandomIt must meet the requirements of RandomAccessIterator.
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Retourne la valeur
La limite suprieure de la gamme la plus tendue au dbut
first qui est tas'. Autrement dit, la dernire it itrateur pour quelle gamme est [first, it) tas' .Original:
The upper bound of the largest range beginning at
first which is heap. That is, the last iterator it for which range [first, it) is heap.The text has been machine-translated via Google Translate.
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Complexit
Linaire de la distance entre
first et lastOriginal:
Linear in the distance between
first and lastThe text has been machine-translated via Google Translate.
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You can help to correct and verify the translation. Click here for instructions.
Notes
Un tas' est un ensemble d'lments
[f,l) qui a les proprits suivantes:Original:
A heap is a range of elements
[f,l) that has the following properties:The text has been machine-translated via Google Translate.
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*fest le plus grand lment de la srieOriginal:*fis the largest element in the rangeThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.- un nouvel lment peut tre ajout l'aide
std::push_heap()Original:a new element can be added usingstd::push_heap()The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - le premier lment peut tre retir l'aide
std::pop_heap()Original:the first element can be removed usingstd::pop_heap()The text has been machine-translated via Google Translate.
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La disposition relle des lments est dfini par l'implmentation .
Original:
The actual arrangement of the elements is implementation defined.
The text has been machine-translated via Google Translate.
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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());
// probably mess up the heap
v.push_back(2);
v.push_back(6);
auto heap_end = std::is_heap_until(v.begin(), v.end());
std::cout << "all of v: ";
for (auto i : v) std::cout << i << ' ';
std::cout << '\n';
std::cout << "only heap: ";
for (auto i = v.begin(); i != heap_end; ++i) std::cout << *i << ' ';
std::cout << '\n';
}
Rsultat :
all of v: 9 5 4 1 1 3 2 6
only heap: 9 5 4 1 1 3 2
Voir aussi
| checks if the given range is a heap (fonction gnrique) | |