Unordered_multimap ::bucket() es una función incorporada en C++ STL que devuelve el número de depósito en el que se encuentra una clave dada. El tamaño del depósito varía de 0 a bucket_count-1.
Sintaxis:
unordered_multimap_name.bucket(key)
Parámetros: la función acepta una sola clave de parámetro obligatorio que especifica la clave cuyo número de depósito se devolverá.
Valor de retorno: Devuelve un tipo integral sin signo que significa el número de depósito en el que se encuentra la clave.
Los siguientes programas ilustran la función anterior:
Programa 1:
// C++ program to illustrate the
// unordered_multimap::bucket()
#include <bits/stdc++.h>
using namespace std;
int main()
{
// declaration
unordered_multimap<int, int> sample;
// inserts key and element
sample.insert({ 10, 100 });
sample.insert({ 10, 100 });
sample.insert({ 20, 200 });
sample.insert({ 30, 300 });
sample.insert({ 15, 150 });
// iterate for all elements and print its bucket number
for (auto it = sample.begin();
it != sample.end(); it++) {
cout << "The bucket number in which {"
<< it->first << ", "
<< it->second << "} is "
<< sample.bucket(it->first) << endl;
}
return 0;
}
Producción:
The bucket number in which {15, 150} is 1
The bucket number in which {30, 300} is 2
The bucket number in which {20, 200} is 6
The bucket number in which {10, 100} is 3
The bucket number in which {10, 100} is 3
Programa 2:
// C++ program to illustrate the
// unordered_multimap::bucket()
#include <bits/stdc++.h>
using namespace std;
int main()
{
// declaration
unordered_multimap<char, char> sample;
// inserts key and element
sample.insert({ 'a', 'b' });
sample.insert({ 'a', 'b' });
sample.insert({ 'b', 'c' });
sample.insert({ 'r', 'a' });
sample.insert({ 'c', 'b' });
// iterate for all elements and print its bucket number
for (auto it = sample.begin();
it != sample.end(); it++) {
cout << "The bucket number in which {"
<< it->first << ", "
<< it->second << "} is "
<< sample.bucket(it->first) << endl;
}
return 0;
}
Producción:
The bucket number in which {c, b} is 1
The bucket number in which {r, a} is 2
The bucket number in which {b, c} is 0
The bucket number in which {a, b} is 6
The bucket number in which {a, b} is 6