#include <iostream>
#include <type_traits>
 
template <typename Arg1, typename Arg2>
constexpr typename std::common_type<Arg1, Arg2>::type vmin(Arg1&& arg1, Arg2&& arg2)
{
    return arg1 < arg2 ? std::forward<Arg1>(arg1) : std::forward<Arg2>(arg2);
}
 
template <typename Arg, typename... Args>
constexpr typename std::common_type<Arg, Args...>::type vmin(Arg&& arg, Args&&... args)
{
    return vmin(std::forward<Arg>(arg), vmin(std::forward<Args>(args)...));
}
 
int main()
{
    std::cout << vmin(3, 2, 1, 2, 5) << std::endl;
    std::cout << vmin(3., 1.2, 1.3, 2., 5.2) << std::endl;
}

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