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// unordered_set::find
#include <iostream>
#include <string>
#include <unordered_set>
int main ()
{
std::unordered_set<std::string> myset = { "red","green","blue" };
std::string input;
std::cout << "color? ";
getline (std::cin,input);
std::unordered_set<std::string>::const_iterator got = myset.find (input);
if ( got == myset.end() )
std::cout << "not found in myset";
else
std::cout << *got << " is in myset";
std::cout << std::endl;
return 0;
}
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