std::partial_sort
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Заголовочный файл <algorithm>
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template< class RandomIt > void partial_sort( RandomIt first, RandomIt middle, RandomIt last ); |
(1) | |
template< class RandomIt, class Compare > void partial_sort( RandomIt first, RandomIt middle, RandomIt last, Compare comp ); |
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Сорта некоторые элементы в диапазоне
[first, last)
в порядке возрастания. Первый middle - first эти элементы находятся в диапазоне [first, middle)
. Порядок равных элементов не гарантируется быть сохранены. Порядок остальных элементов в диапазоне [middle, last)
не определен. Первый вариант используется operator< для сравнения элементов, вторая версия использует данную функцию сравнения 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.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Содержание |
[править] Параметры
first, last | - | диапазон элементов для сортировки
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:
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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[править] Возвращаемое значение
(Нет)
Original:
(none)
The text has been machine-translated via Google Translate.
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[править] Сложность
O(N·log2(N)), где N = std::distance(first, last) применения
cmp
. Если дополнительная память недоступна, то сложность 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.
You can help to correct and verify the translation. Click here for instructions.
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[править] Пример
#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 << " "; } }
Вывод:
0 1 2 7 8 6 5 9 4 3
[править] См. также
копии и частично виды диапазон элементов 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. (шаблон функции) | |
виды диапазон элементов при сохранении порядка между равными элементами 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. (шаблон функции) | |
виды диапазон в порядке возрастания 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. (шаблон функции) |