Compilare: main.cpp: In function 'int main()': main.cpp:50:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 50 | auto [range_left, range_right] = occurrences[v[i].first]; | ^ main.cpp:51:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 51 | auto [min_val, max_val] = min_on_segment.query(range_left, range_right + 1); | ^ main.cpp:52:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 52 | auto [left, right] = min_on_interval.query(min_val, max_val + 1); | ^ main.cpp: In instantiation of 'Segtree<T>::Segtree(Iterator, Iterator, T, std::function<T(T, T)>) [with Iterator = std::pair<int, int>*; T = std::pair<int, int>]': main.cpp:46:62: required from here main.cpp:10:94: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] 10 | n = distance(first, last); h = sizeof(int) * 8 - __builtin_clz(n); t.resize(1LL << h + 1, neutral); | ~~^~~