#include <iostream>
#include <deque>
#include <algorithm>
using std::deque;
using std::cout;
using std::endl;
int main()
{
deque<int> dq = { 3, 6, 9, 7, 1, 2 };
auto minmax = minmax_element(dq.cbegin(), dq.cend());
cout << "min: " << *(minmax.first) << endl;
cout << "max: " << *(minmax.second) << endl;
return 0;
}
/*
run:
min: 1
max: 9
*/