std::partial_sort
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| definiert in Header <algorithm>
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| template< class RandomIt > void partial_sort( RandomIt first, RandomIt middle, RandomIt last ); |
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| template< class RandomIt, class Compare > void partial_sort( RandomIt first, RandomIt middle, RandomIt last, Compare comp ); |
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Arten einige der Elemente in dem Bereich
[first, last) in aufsteigender Reihenfolge. Der erste middle - first dieser Elemente sind im Bereich [first, middle) platziert. Die Reihenfolge der gleiche Elemente ist nicht garantiert, bewahrt werden. Die Reihenfolge der übrigen Elemente im Bereich [middle, last) ist nicht spezifiziert. Die erste Version verwendet operator< um die Elemente zu vergleichen, verwendet die zweite Version des gegebenen Vergleichsfunktion comp .Original:
Sorts some of the elements in the range
[first, last) in ascending order. The first middle - first of these elements are placed in the range [first, middle). The order of equal elements is not guaranteed to be preserved. The order of the remaining elements in the range [middle, last) is unspecified. The first version uses operator< to compare the elements, the second version uses the given comparison function comp.The text has been machine-translated via Google Translate.
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Inhaltsverzeichnis |
[Bearbeiten] Parameter
| first, last | - | der Bereich von Elementen zu sortieren
Original: the range of elements to sort 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. |
| Type requirements | ||
-RandomIt must meet the requirements of ValueSwappable and RandomAccessIterator.
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-The type of dereferenced RandomIt must meet the requirements of MoveAssignable and MoveConstructible.
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[Bearbeiten] Rückgabewert
(None)
Original:
(none)
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[Bearbeiten] Komplexität
O(N·log2(N)), wo N = std::distance(first, last) Anwendungen
cmp. Wenn zusätzlicher Speicher verfügbar ist, dann ist die Komplexität O(N·log(N))Original:
O(N·log2(N)), where N = std::distance(first, last) applications of
cmp. If additional memory is available, then the complexity is O(N·log(N))The text has been machine-translated via Google Translate.
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[Bearbeiten] Beispiel
#include <algorithm> #include <functional> #include <array> #include <iostream> int main() { std::array<int, 10> s{5, 7, 4, 2, 8, 6, 1, 9, 0, 3}; std::partial_sort(s.begin(), s.begin() + 3, s.end()); for (int a : s) { std::cout << a << " "; } }
Output:
0 1 2 7 8 6 5 9 4 3
[Bearbeiten] Siehe auch
| Kopien und teilweise Arten eine Reihe von Elementen Original: copies and partially sorts a range of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template) | |
| Arten eine Reihe von Elementen, während Aufrechterhaltung der Ordnung zwischen gleichen Elementen Original: sorts a range of elements while preserving order between equal elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template) | |
| Sortiert einen Bereich in aufsteigender Reihenfolge Original: sorts a range into ascending order The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template) | |
