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#include <algorithm>
#include <string>
#include <iostream>
#include <iterator>
using namespace std;
bool pred(std::string const &str)
{
return "aceg"s.find(str.front()) == string::npos;
}
int main()
{
string sarr[] =
{
"alpha", "bravo", "charley", "delta", "echo",
"foxtrot", "golf", "hotel"
};
auto last = end(sarr);
copy(sarr + 2, last, sarr); // move all elements two positions left
// copy to cout using an ostream_iterator for strings
copy(sarr, last, ostream_iterator<string>(cout, " "));
cout << '\n';
// using copy_if:
copy_if(sarr, sarr + size(sarr), sarr, pred);
copy(sarr, sarr + size(sarr), ostream_iterator<string>(cout, " "));
cout << '\n';
}
// Displays:
// charley delta echo foxtrot golf hotel golf hotel
// delta foxtrot hotel hotel golf hotel golf hotel
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