Compilare: main.cpp: In instantiation of 'T _query(std::unique_ptr<AIntNode<T> >&, interval, interval) [with T = int; interval = std::pair<long unsigned int, long unsigned int>]': main.cpp:45:22: required from 'T AInt<T>::query(interval) [with T = int; interval = std::pair<long unsigned int, long unsigned int>]' main.cpp:134:70: required from here main.cpp:107:9: warning: statement has no effect [-Wunused-value] 107 | interv; | ^~~~~~ main.cpp:113:9: warning: statement has no effect [-Wunused-value] 113 | interv; | ^~~~~~