Borderou de evaluare (job #784041)

Compilare: main.cpp: In lambda function: main.cpp:39:203: warning: fold-expressions only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 39 | template<typename... Args> ostream& operator<<(ostream& os, const tuple<Args...>& t) { os << '('; apply([&os](const Args&... args) { size_t n = 0; ((os << args << (++n != sizeof...(Args) ? ", " : "")), ...); }, t); return os << ')'; } | ^~~