Compilare: main.cpp: In function 'void Kruskal(std::vector<std::pair<int, std::pair<int, int> > >)': main.cpp:58:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 58 | if(rez.size() >= N) break; | ~~~~~~~~~~~^~~~ main.cpp:62:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 1; i < rez.size(); ++i) { | ~~^~~~~~~~~~~~