Compilare: main.cpp: In function 'int main()': main.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<drum>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for( int i = 0; i < adj.size(); ++i ) | ~~^~~~~~~~~~~~ main.cpp:99:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 99 | for( int i = 0; i < ansList.size(); ++i ) | ~~^~~~~~~~~~~~~~~~