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Standard library header <algorithm>

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This header is part of the algorithm library.

Contents

Functions

Template:cpp/algorithm/dcl list all any none ofTemplate:cpp/algorithm/dcl list for eachTemplate:cpp/algorithm/dcl list countTemplate:cpp/algorithm/dcl list mismatchTemplate:cpp/algorithm/dcl list equalTemplate:cpp/algorithm/dcl list findTemplate:cpp/algorithm/dcl list find endTemplate:cpp/algorithm/dcl list find first ofTemplate:cpp/algorithm/dcl list adjacent findTemplate:cpp/algorithm/dcl list searchTemplate:cpp/algorithm/dcl list search nTemplate:cpp/algorithm/dcl list copyTemplate:cpp/algorithm/dcl list copy nTemplate:cpp/algorithm/dcl list copy backwardTemplate:cpp/algorithm/dcl list moveTemplate:cpp/algorithm/dcl list move backwardTemplate:cpp/algorithm/dcl list fillTemplate:cpp/algorithm/dcl list fill nTemplate:cpp/algorithm/dcl list transformTemplate:cpp/algorithm/dcl list generateTemplate:cpp/algorithm/dcl list generate nTemplate:cpp/algorithm/dcl list removeTemplate:cpp/algorithm/dcl list remove copyTemplate:cpp/algorithm/dcl list replaceTemplate:cpp/algorithm/dcl list replace copyTemplate:cpp/algorithm/dcl list swapTemplate:cpp/algorithm/dcl list swap rangesTemplate:cpp/algorithm/dcl list iter swapTemplate:cpp/algorithm/dcl list reverseTemplate:cpp/algorithm/dcl list reverse copyTemplate:cpp/algorithm/dcl list rotateTemplate:cpp/algorithm/dcl list rotate copyTemplate:cpp/algorithm/dcl list random shuffleTemplate:cpp/algorithm/dcl list uniqueTemplate:cpp/algorithm/dcl list unique copyTemplate:cpp/algorithm/dcl list is partitionedTemplate:cpp/algorithm/dcl list partitionTemplate:cpp/algorithm/dcl list partition copyTemplate:cpp/algorithm/dcl list stable partitionTemplate:cpp/algorithm/dcl list partition pointTemplate:cpp/algorithm/dcl list is sortedTemplate:cpp/algorithm/dcl list is sorted untilTemplate:cpp/algorithm/dcl list sortTemplate:cpp/algorithm/dcl list partial sortTemplate:cpp/algorithm/dcl list partial sort copyTemplate:cpp/algorithm/dcl list stable sortTemplate:cpp/algorithm/dcl list nth elementTemplate:cpp/algorithm/dcl list lower boundTemplate:cpp/algorithm/dcl list upper boundTemplate:cpp/algorithm/dcl list binary searchTemplate:cpp/algorithm/dcl list equal rangeTemplate:cpp/algorithm/dcl list mergeTemplate:cpp/algorithm/dcl list inplace mergeTemplate:cpp/algorithm/dcl list includesTemplate:cpp/algorithm/dcl list set differenceTemplate:cpp/algorithm/dcl list set intersectionTemplate:cpp/algorithm/dcl list set symmetric differenceTemplate:cpp/algorithm/dcl list set unionTemplate:cpp/algorithm/dcl list is heapTemplate:cpp/algorithm/dcl list is heap untilTemplate:cpp/algorithm/dcl list make heapTemplate:cpp/algorithm/dcl list push heapTemplate:cpp/algorithm/dcl list pop heapTemplate:cpp/algorithm/dcl list sort heapTemplate:cpp/algorithm/dcl list maxTemplate:cpp/algorithm/dcl list max elementTemplate:cpp/algorithm/dcl list minTemplate:cpp/algorithm/dcl list min elementTemplate:cpp/algorithm/dcl list minmaxTemplate:cpp/algorithm/dcl list minmax elementTemplate:cpp/algorithm/dcl list lexicographical compareTemplate:cpp/algorithm/dcl list is permutationTemplate:cpp/algorithm/dcl list next permutationTemplate:cpp/algorithm/dcl list prev permutation
Non-modifying sequence operations
Modifying sequence operations
Partitioning operations
Sorting operations (on sorted ranges)
Binary search operations (on sorted ranges)
Set operations (on sorted ranges)
Heap operations
Minimum/maximum operations

Synopsis

#include <initializer_list>
namespace std
{
    // non-modifying sequence operations:
    template <class InputIterator, class Predicate>
        bool all_of(InputIterator first, InputIterator last, Predicate pred);
    template <class InputIterator, class Predicate>
        bool any_of(InputIterator first, InputIterator last, Predicate pred);
    template <class InputIterator, class Predicate>
        bool none_of(InputIterator first, InputIterator last, Predicate pred);
 
    template<class InputIterator, class Function>
        Function for_each(InputIterator first, InputIterator last, Function f);
 
    template<class InputIterator, class T>
        InputIterator find(InputIterator first, InputIterator last,
                           const T& value);
    template<class InputIterator, class Predicate>
        InputIterator find_if(InputIterator first, InputIterator last,
                              Predicate pred);
    template<class InputIterator, class Predicate>
        InputIterator find_if_not(InputIterator first, InputIterator last,
                                  Predicate pred);
 
    template<class ForwardIterator1, class ForwardIterator2>
        ForwardIterator1
        find_end(ForwardIterator1 first1, ForwardIterator1 last1,
                 ForwardIterator2 first2, ForwardIterator2 last2);
    template<class ForwardIterator1, class ForwardIterator2,
             class BinaryPredicate>
        ForwardIterator1
        find_end(ForwardIterator1 first1, ForwardIterator1 last1,
                 ForwardIterator2 first2, ForwardIterator2 last2,
                 BinaryPredicate pred);
 
    template<class InputIterator, class ForwardIterator>
        InputIterator
        find_first_of(InputIterator first1, InputIterator last1,
                      ForwardIterator first2, ForwardIterator last2);
    template<class InputIterator, class ForwardIterator,
             class BinaryPredicate>
        InputIterator
        find_first_of(InputIterator first1, InputIterator last1,
                      ForwardIterator first2, ForwardIterator last2,
                      BinaryPredicate pred);
 
    template<class ForwardIterator>
        ForwardIterator adjacent_find(ForwardIterator first,
                                      ForwardIterator last);
    template<class ForwardIterator, class BinaryPredicate>
        ForwardIterator adjacent_find(ForwardIterator first,
                                      ForwardIterator last,
                                      BinaryPredicate pred);
    template<class InputIterator, class T>
        typename iterator_traits<InputIterator>::difference_type
        count(InputIterator first, InputIterator last, const T& value);
    template<class InputIterator, class Predicate>
        typename iterator_traits<InputIterator>::difference_type
        count_if(InputIterator first, InputIterator last, Predicate pred);
 
    template<class InputIterator1, class InputIterator2>
        pair<InputIterator1, InputIterator2>
        mismatch(InputIterator1 first1, InputIterator1 last1,
                 InputIterator2 first2);
    template<class InputIterator1, class InputIterator2, class BinaryPredicate>
        pair<InputIterator1, InputIterator2>
        mismatch(InputIterator1 first1, InputIterator1 last1,
                 InputIterator2 first2, BinaryPredicate pred);
 
    template<class InputIterator1, class InputIterator2>
        bool equal(InputIterator1 first1, InputIterator1 last1,
                   InputIterator2 first2);
    template<class InputIterator1, class InputIterator2, class BinaryPredicate>
        bool equal(InputIterator1 first1, InputIterator1 last1,
                   InputIterator2 first2, BinaryPredicate pred);
 
    template<class ForwardIterator1, class ForwardIterator2>
        bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
                            ForwardIterator2 first2);
    template<class ForwardIterator1, class ForwardIterator2,
    class BinaryPredicate>
        bool is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
                            ForwardIterator2 first2, BinaryPredicate pred);
 
    template<class ForwardIterator1, class ForwardIterator2>
        ForwardIterator1 search(
            ForwardIterator1 first1, ForwardIterator1 last1,
            ForwardIterator2 first2, ForwardIterator2 last2);
    template<class ForwardIterator1, class ForwardIterator2,
             class BinaryPredicate>
        ForwardIterator1 search(
            ForwardIterator1 first1, ForwardIterator1 last1,
            ForwardIterator2 first2, ForwardIterator2 last2,
            BinaryPredicate pred);
 
    template<class ForwardIterator, class Size, class T>
        ForwardIterator search_n(ForwardIterator first, ForwardIterator last,
                                 Size count, const T& value);
    template<class ForwardIterator, class Size, class T, class BinaryPredicate>
        ForwardIterator1 search_n(ForwardIterator first, ForwardIterator last,
                                  Size count, const T& value,
                                  BinaryPredicate pred);
 
    // modifying sequence operations:
 
    // copy:
    template<class InputIterator, class OutputIterator>
        OutputIterator copy(InputIterator first, InputIterator last,
                            OutputIterator result);
    template<class InputIterator, class Size, class OutputIterator>
        OutputIterator copy_n(InputIterator first, Size n,
                              OutputIterator result);
    template<class InputIterator, class OutputIterator, class Predicate>
        OutputIterator copy_if(InputIterator first, InputIterator last,
                               OutputIterator result, Predicate pred);
    template<class BidirectionalIterator1, class BidirectionalIterator2>
        BidirectionalIterator2 copy_backward(
            BidirectionalIterator1 first, BidirectionalIterator1 last,
            BidirectionalIterator2 result);
 
    // move:
    template<class InputIterator, class OutputIterator>
        OutputIterator move(InputIterator first, InputIterator last,
                            OutputIterator result);
    template<class BidirectionalIterator1, class BidirectionalIterator2>
        BidirectionalIterator2 move_backward(
            BidirectionalIterator1 first, BidirectionalIterator1 last,
            BidirectionalIterator2 result);
 
    // swap:
    template<class ForwardIterator1, class ForwardIterator2>
        ForwardIterator2 swap_ranges(ForwardIterator1 first1,
                                     ForwardIterator1 last1, ForwardIterator2 first2);
    template<class ForwardIterator1, class ForwardIterator2>
        void iter_swap(ForwardIterator1 a, ForwardIterator2 b);
    template<class InputIterator, class OutputIterator, class UnaryOperation>
        OutputIterator transform(InputIterator first, InputIterator last,
                                 OutputIterator result, UnaryOperation op);
 
    template<class InputIterator1, class InputIterator2, class OutputIterator,
             class BinaryOperation>
        OutputIterator transform(InputIterator1 first1, InputIterator1 last1,
                                 InputIterator2 first2, OutputIterator result,
                                 BinaryOperation binary_op);
 
    template<class ForwardIterator, class T>
        void replace(ForwardIterator first, ForwardIterator last,
                     const T& old_value, const T& new_value);
    template<class ForwardIterator, class Predicate, class T>
        void replace_if(ForwardIterator first, ForwardIterator last,
                        Predicate pred, const T& new_value);
    template<class InputIterator, class OutputIterator, class T>
        OutputIterator replace_copy(InputIterator first, InputIterator last,
                                    OutputIterator result,
                                    const T& old_value, const T& new_value);
    template<class InputIterator, class OutputIterator, class Predicate, class T>
        OutputIterator replace_copy_if(InputIterator first, InputIterator last,
                                       OutputIterator result,
                                       Predicate pred, const T& new_value);
 
    template<class ForwardIterator, class T>
        void fill(ForwardIterator first, ForwardIterator last, const T& value);
    template<class OutputIterator, class Size, class T>
        OutputIterator fill_n(OutputIterator first, Size n, const T& value);
    template<class ForwardIterator, class Generator>
        void generate(ForwardIterator first, ForwardIterator last,
                      Generator gen);
    template<class OutputIterator, class Size, class Generator>
        OutputIterator generate_n(OutputIterator first, Size n, Generator gen);
 
    template<class ForwardIterator, class T>
        ForwardIterator remove(ForwardIterator first, ForwardIterator last,
                               const T& value);
    template<class ForwardIterator, class Predicate>
        ForwardIterator remove_if(ForwardIterator first, ForwardIterator last,
                                  Predicate pred);
    template<class InputIterator, class OutputIterator, class T>
        OutputIterator remove_copy(InputIterator first, InputIterator last,
                                   OutputIterator result, const T& value);
    template<class InputIterator, class OutputIterator, class Predicate>
        OutputIterator remove_copy_if(InputIterator first, InputIterator last,
                                      OutputIterator result, Predicate pred);
 
    template<class ForwardIterator>
        ForwardIterator unique(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class BinaryPredicate>
        ForwardIterator unique(ForwardIterator first, ForwardIterator last,
                               BinaryPredicate pred);
    template<class InputIterator, class OutputIterator>
        OutputIterator unique_copy(InputIterator first, InputIterator last,
                                   OutputIterator result);
    template<class InputIterator, class OutputIterator, class BinaryPredicate>
        OutputIterator unique_copy(InputIterator first, InputIterator last,
                                   OutputIterator result, BinaryPredicate pred);
 
    template<class BidirectionalIterator>
        void reverse(BidirectionalIterator first, BidirectionalIterator last);
    template<class BidirectionalIterator, class OutputIterator>
        OutputIterator reverse_copy(BidirectionalIterator first,
                                    BidirectionalIterator last,
                                    OutputIterator result);
 
    template<class ForwardIterator>
        ForwardIterator rotate(ForwardIterator first, ForwardIterator middle,
                               ForwardIterator last);
    template<class ForwardIterator, class OutputIterator>
        OutputIterator rotate_copy(
            ForwardIterator first, ForwardIterator middle,
            ForwardIterator last, OutputIterator result);
 
    template<class RandomAccessIterator>
        void random_shuffle(RandomAccessIterator first,
                            RandomAccessIterator last);
    template<class RandomAccessIterator, class RandomNumberGenerator>
        void random_shuffle(RandomAccessIterator first,
                            RandomAccessIterator last,
                            RandomNumberGenerator&& rand);
    template<class RandomAccessIterator, class UniformRandomNumberGenerator>
        void shuffle(RandomAccessIterator first,
                     RandomAccessIterator last,
                     UniformRandomNumberGenerator&& rand);
 
    // partitions:
    template <class InputIterator, class Predicate>
        bool is_partitioned(InputIterator first, InputIterator last, Predicate pred);
 
    template<class ForwardIterator, class Predicate>
        ForwardIterator partition(ForwardIterator first,
                                  ForwardIterator last,
                                  Predicate pred);
 
    template<class BidirectionalIterator, class Predicate>
        BidirectionalIterator stable_partition(BidirectionalIterator first,
                                               BidirectionalIterator last,
                                               Predicate pred);
 
    template <class InputIterator, class OutputIterator1,
              class OutputIterator2, class Predicate>
        pair<OutputIterator1, OutputIterator2>
        partition_copy(InputIterator first, InputIterator last,
                       OutputIterator1 out_true, OutputIterator2 out_false,
                       Predicate pred);
 
    template<class ForwardIterator, class Predicate>
        ForwardIterator partition_point(ForwardIterator first,
                                        ForwardIterator last,
                                        Predicate pred);
 
    // sorting and related operations:
 
    // sorting:
    template<class RandomAccessIterator>
        void sort(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void sort(RandomAccessIterator first, RandomAccessIterator last,
                  Compare comp);
 
    template<class RandomAccessIterator>
        void stable_sort(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void stable_sort(RandomAccessIterator first, RandomAccessIterator last,
                         Compare comp);
 
    template<class RandomAccessIterator>
        void partial_sort(RandomAccessIterator first,
                          RandomAccessIterator middle,
                          RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void partial_sort(RandomAccessIterator first,
                          RandomAccessIterator middle,
                          RandomAccessIterator last, Compare comp);
    template<class InputIterator, class RandomAccessIterator>
        RandomAccessIterator partial_sort_copy(
            InputIterator first, InputIterator last,
            RandomAccessIterator result_first,
            RandomAccessIterator result_last);
    template<class InputIterator, class RandomAccessIterator, class Compare>
        RandomAccessIterator partial_sort_copy(
            InputIterator first, InputIterator last,
            RandomAccessIterator result_first,
            RandomAccessIterator result_last,
            Compare comp);
 
    template<class ForwardIterator>
        bool is_sorted(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class Compare>
        bool is_sorted(ForwardIterator first, ForwardIterator last,
                       Compare comp);
    template<class ForwardIterator>
        ForwardIterator is_sorted_until(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class Compare>
        ForwardIterator is_sorted_until(ForwardIterator first, ForwardIterator last,
                                        Compare comp);
 
    template<class RandomAccessIterator>
        void nth_element(RandomAccessIterator first, RandomAccessIterator nth,
                         RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void nth_element(RandomAccessIterator first, RandomAccessIterator nth,
                         RandomAccessIterator last, Compare comp);
    // binary search:
    template<class ForwardIterator, class T>
        ForwardIterator lower_bound(ForwardIterator first, ForwardIterator last,
                                    const T& value);
    template<class ForwardIterator, class T, class Compare>
        ForwardIterator lower_bound(ForwardIterator first, ForwardIterator last,
                                    const T& value, Compare comp);
 
    template<class ForwardIterator, class T>
        ForwardIterator upper_bound(ForwardIterator first, ForwardIterator last,
                                    const T& value);
    template<class ForwardIterator, class T, class Compare>
        ForwardIterator upper_bound(ForwardIterator first, ForwardIterator last,
                                    const T& value, Compare comp);
 
    template<class ForwardIterator, class T>
        pair<ForwardIterator, ForwardIterator>
        equal_range(ForwardIterator first, ForwardIterator last,
                    const T& value);
    template<class ForwardIterator, class T, class Compare>
        pair<ForwardIterator, ForwardIterator>
        equal_range(ForwardIterator first, ForwardIterator last,
                    const T& value, Compare comp);
 
    template<class ForwardIterator, class T>
        bool binary_search(ForwardIterator first, ForwardIterator last,
                           const T& value);
    template<class ForwardIterator, class T, class Compare>
        bool binary_search(ForwardIterator first, ForwardIterator last,
                           const T& value, Compare comp);
 
    // merge:
    template<class InputIterator1, class InputIterator2, class OutputIterator>
        OutputIterator merge(InputIterator1 first1, InputIterator1 last1,
                             InputIterator2 first2, InputIterator2 last2,
                             OutputIterator result);
    template<class InputIterator1, class InputIterator2, class OutputIterator,
            class Compare>
        OutputIterator merge(InputIterator1 first1, InputIterator1 last1,
                             InputIterator2 first2, InputIterator2 last2,
                             OutputIterator result, Compare comp);
 
    template<class BidirectionalIterator>
        void inplace_merge(BidirectionalIterator first,
                           BidirectionalIterator middle,
                           BidirectionalIterator last);
    template<class BidirectionalIterator, class Compare>
        void inplace_merge(BidirectionalIterator first,
                           BidirectionalIterator middle,
                           BidirectionalIterator last, Compare comp);
 
    // set operations:
    template<class InputIterator1, class InputIterator2>
        bool includes(InputIterator1 first1, InputIterator1 last1,
                      InputIterator2 first2, InputIterator2 last2);
    template<class InputIterator1, class InputIterator2, class Compare>
        bool includes(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2, Compare comp);
 
    template<class InputIterator1, class InputIterator2, class OutputIterator>
        OutputIterator set_union(InputIterator1 first1, InputIterator1 last1,
                                 InputIterator2 first2, InputIterator2 last2,
                                 OutputIterator result);
    template<class InputIterator1, class InputIterator2, class OutputIterator,
             class Compare>
        OutputIterator set_union(InputIterator1 first1, InputIterator1 last1,
                                 InputIterator2 first2, InputIterator2 last2,
                                 OutputIterator result, Compare comp);
 
    template<class InputIterator1, class InputIterator2, class OutputIterator>
        OutputIterator set_intersection(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result);
    template<class InputIterator1, class InputIterator2, class OutputIterator,
             class Compare>
        OutputIterator set_intersection(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result, Compare comp);
 
    template<class InputIterator1, class InputIterator2, class OutputIterator>
        OutputIterator set_difference(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result);
    template<class InputIterator1, class InputIterator2, class OutputIterator,
             class Compare>
        OutputIterator set_difference(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result, Compare comp);
 
    template<class InputIterator1, class InputIterator2, class OutputIterator>
        OutputIterator set_symmetric_difference(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result);
    template<class InputIterator1, class InputIterator2, class OutputIterator,
             class Compare>
        OutputIterator set_symmetric_difference(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            OutputIterator result, Compare comp);
 
    // heap operations:
    template<class RandomAccessIterator>
        void push_heap(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void push_heap(RandomAccessIterator first, RandomAccessIterator last,
                       Compare comp);
    template<class RandomAccessIterator>
        void pop_heap(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void pop_heap(RandomAccessIterator first, RandomAccessIterator last,
                      Compare comp);
 
    template<class RandomAccessIterator>
        void make_heap(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void make_heap(RandomAccessIterator first, RandomAccessIterator last,
                       Compare comp);
 
    template<class RandomAccessIterator>
        void sort_heap(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        void sort_heap(RandomAccessIterator first, RandomAccessIterator last,
                       Compare comp);
 
    template<class RandomAccessIterator>
        bool is_heap(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        bool is_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
    template<class RandomAccessIterator>
        RandomAccessIterator is_heap_until(RandomAccessIterator first, RandomAccessIterator last);
    template<class RandomAccessIterator, class Compare>
        RandomAccessIterator is_heap_until(RandomAccessIterator first, RandomAccessIterator last,
                                           Compare comp);
    // minimum and maximum:
    template<class T> const T& min(const T& a, const T& b);
    template<class T, class Compare>
        const T& min(const T& a, const T& b, Compare comp);
    template<class T>
        T min(initializer_list<T> t);
    template<class T, class Compare>
        T min(initializer_list<T> t, Compare comp);
 
    template<class T> const T& max(const T& a, const T& b);
    template<class T, class Compare>
        const T& max(const T& a, const T& b, Compare comp);
    template<class T>
        T max(initializer_list<T> t);
    template<class T, class Compare>
        T max(initializer_list<T> t, Compare comp);
 
    template<class T> pair<const T&, const T&> minmax(const T& a, const T& b);
    template<class T, class Compare>
        pair<const T&, const T&> minmax(const T& a, const T& b, Compare comp);
    template<class T>
        pair<T, T> minmax(initializer_list<T> t);
    template<class T, class Compare>
        pair<T, T> minmax(initializer_list<T> t, Compare comp);
 
    template<class ForwardIterator>
        ForwardIterator min_element(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class Compare>
        ForwardIterator min_element(ForwardIterator first, ForwardIterator last,
                                    Compare comp);
 
    template<class ForwardIterator>
        ForwardIterator max_element(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class Compare>
        ForwardIterator max_element(ForwardIterator first, ForwardIterator last,
                                    Compare comp);
 
    template<class ForwardIterator>
        pair<ForwardIterator, ForwardIterator>
        minmax_element(ForwardIterator first, ForwardIterator last);
    template<class ForwardIterator, class Compare>
        pair<ForwardIterator, ForwardIterator>
        minmax_element(ForwardIterator first, ForwardIterator last, Compare comp);
 
    template<class InputIterator1, class InputIterator2>
        bool lexicographical_compare(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2);
    template<class InputIterator1, class InputIterator2, class Compare>
        bool lexicographical_compare(
            InputIterator1 first1, InputIterator1 last1,
            InputIterator2 first2, InputIterator2 last2,
            Compare comp);
 
    // permutations:
    template<class BidirectionalIterator>
        bool next_permutation(BidirectionalIterator first,
                              BidirectionalIterator last);
    template<class BidirectionalIterator, class Compare>
        bool next_permutation(BidirectionalIterator first,
                              BidirectionalIterator last, Compare comp);
 
    template<class BidirectionalIterator>
        bool prev_permutation(BidirectionalIterator first,
                              BidirectionalIterator last);
    template<class BidirectionalIterator, class Compare>
        bool prev_permutation(BidirectionalIterator first,
                              BidirectionalIterator last, Compare comp);
}