#include <iostream>
using std::cout;
using std::endl;
#include <algorithm>
#include <vector>
#include <iterator>
int main()
{
int a1[ 10 ] = { 2, 2, 4, 4, 4, 6, 6, 6, 6, 8 };
std::vector< int > v( a1, a1 + 10 );
std::ostream_iterator< int > output( cout, " " );
std::copy( v.begin(), v.end(), output );
std::pair< std::vector< int >::iterator, std::vector< int >::iterator > eq;
eq = std::equal_range( v.begin(), v.end(), 6 );
cout << "\n\n\nLower bound of 6 is element " << ( eq.first - v.begin() ) << " of vector v \n\n\n";
cout << "Upper bound of 6 is element " << ( eq.second - v.begin() ) << " of vector v";
return 0;
}
/*
2 2 4 4 4 6 6 6 6 8
Lower bound of 6 is element 5 of vector v
Upper bound of 6 is element 9 of vector v
*/
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