Varianti

    std::set::count

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    <metanoindex/>

     
    C++
     
    Contenitori libreria
     
    std::set
    Membri funzioni
    Original:
    Member functions
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    set::set
    set::~set
    set::operator=
    set::get_allocator
    Iteratori
    Original:
    Iterators
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    set::begin
    set::cbegin
    (C++11)
    set::end
    set::cend
    (C++11)
    set::rbegin
    set::crbegin
    (C++11)
    set::rend
    set::crend
    (C++11)
    Capacità
    Original:
    Capacity
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    set::empty
    set::size
    set::max_size
    Modificatori
    Original:
    Modifiers
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    set::clear
    set::insert
    set::emplace(C++11)
    set::emplace_hint(C++11)
    set::erase
    set::swap
    Lookup
    Original:
    Lookup
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    set::count
    set::find
    set::equal_range
    set::lower_bound
    set::upper_bound
    Osservatori
    Original:
    Observers
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    set::key_comp
    set::value_comp
     
    <tbody> </tbody>
    size_type count( const Key& key ) const;
    Restituisce il numero di elementi con key chiave.
    Original:
    Returns the number of elements with key key.
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    Parametri

    key -
    valore chiave degli elementi da contare
    Original:
    key value of the elements to count
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    Valore di ritorno

    Numero di elementi con key chiave
    Original:
    Number of elements with key key
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    Complessità

    Logarithmic in the size of the container plus linear in the number of the elements found.

    Vedi anche

    mihai are mere
    trova elemento con chiave specifica
    Original:
    finds element with specific key
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