Compilare: main.cpp: In member function 'void Fenwick::update(int, int)': main.cpp:17:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int i = k; i < bit.size(); i += lsb(i)) | ~~^~~~~~~~~~~~ main.cpp: In member function 'long long int Fenwick::query(int)': main.cpp:25:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | if (x >= bit.size()) { | ~~^~~~~~~~~~~~~ main.cpp: In member function 'int Fenwick::bin_search(long long int, bool)': main.cpp:40:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | if (ans + pas >= bit.size()) { continue; } | ~~~~~~~~~~^~~~~~~~~~~~~