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std::unordered_map::count - cppreference.com

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size_type count( const Key& key ) const;

Retorna o número de elementos com key chave.

Original:

Returns the number of elements with key key.

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Parâmetros

key -

valor dos elementos chave para contar

Original:

key value of the elements to count

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Valor de retorno

Número de elementos com key chave

Original:

Number of elements with key key

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Complexidade

Amortized constant on average, worst case linear in the size of the container.

Veja também

encontra elemento com chave específica

Original:

finds element with specific key

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(função pública membro) [edit]

retorna a escala de elementos que combinam com uma tecla específica

Original:

returns range of elements matching a specific key

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(função pública membro) [edit]