Compilare: main.cpp: In member function 'std::pair<std::vector<Edge>, int> Graph::MSTKruskall()': main.cpp:420:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 420 | for(int j = 0; j < adj[i].size(); ++j) { | ~~^~~~~~~~~~~~~~~ main.cpp:434:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 434 | for(int i = 0; i < edges.size() && cnt <= E - 1; ++i) { | ~~^~~~~~~~~~~~~~