#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
 
int main() {
    std::string const s { "abcdef" };
    std::vector<char> const a { 'a', 'z', 'e', 'r', 't', 'y' };
    std::cout << std::boolalpha;
    std::cout << std::lexicographical_compare(begin(s), end(s), begin(a), end(a)) << std::endl;
}