Compilare: main.cpp: In function 'void elimina_muchie(int, int)': main.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i = 0; i < v[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for(int i = 0; i < v[y].size(); i++) | ~~^~~~~~~~~~~~~