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std::sort

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< cpp‎ | algorithm

 
 
アルゴリズムライブラリ
機能します
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Functions
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シーケンス動作を非改変
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Non-modifying sequence operations
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シーケンス動作を変更する
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Modifying sequence operations
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操作を仕切る
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Partitioning operations
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(ソートされた範囲で)ソート操作
Original:
Sorting operations (on sorted ranges)
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is_sorted(C++11)
is_sorted_until(C++11)
sort
バイナリ検索操作(ソート範囲で)
Original:
Binary search operations (on sorted ranges)
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(ソートされた範囲で)操作を設定します
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Set operations (on sorted ranges)
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ヒープ操作
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Heap operations
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最小値/最大値操作
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Minimum/maximum operations
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数値演算
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Numeric operations
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Cライブラリ
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C library
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Defined in header <algorithm>
template< class RandomIt >
void sort( RandomIt first, RandomIt last );
(1)
template< class RandomIt, class Compare >
void sort( RandomIt first, RandomIt last, Compare comp );
(2)
昇順で範囲[first, last)内の要素を並べ替えます。等しい要素の順序は保持される保証はありません。最初のバージョンは、要素を比較するoperator<使用して、2番目のバージョンは、指定された比較関数compを使用しています.
Original:
Sorts the elements in the range [first, last) in ascending order. The order of equal elements is not guaranteed to be preserved. The first version uses operator< to compare the elements, the second version uses the given comparison function comp.
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目次

[編集] パラメータ

first, last -
ソートする要素の範囲
Original:
the range of elements to sort
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comp - 比較関数. 最初の値が二つ目の値より小さい 場合、 ​trueを返します.

比較関数のシグネチャは以下と同等でなければなりません.

 bool cmp(const Type1 &a, const Type2 &b);

シグネチャはconstを含まなくても構いませんが, 比較関数は渡されたオブジェクトを変更してはなりません.
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. ​

型の要件
-
RandomItValueSwappable and RandomAccessIterator
-
The type of dereferenced RandomIt must meet the requirements of MoveAssignable and MoveConstructible.

[編集] 値を返します

(なし)
Original:
(none)
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[編集] 複雑

O(N·log(N))N = std::distance(first, last)cmpアプリケーション.
Original:
O(N·log(N)), where N = std::distance(first, last) applications of cmp.
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[編集]

#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::sort(s.begin(), s.end());
    for (int a : s) {
        std::cout << a << " ";
    } 
    std::cout << '\n';
 
    std::sort(s.begin(), s.end(), std::greater<int>());
    for (int a : s) {
        std::cout << a << " ";
    } 
    std::cout << '\n';
}

出力:

0 1 2 3 4 5 6 7 8 9
9 8 7 6 5 4 3 2 1 0

[編集] も参照してください

ソート範囲の最初のN要素
Original:
sorts the first N elements of a range
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(関数テンプレート) [edit]
ソートされた範囲の要素を等しい要素間の順序を維持しながら
Original:
sorts a range of elements while preserving order between equal elements
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(関数テンプレート) [edit]