Compilare: main.cpp: In function 'void kruskal()': main.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<double, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(int i = 0;i<puncte_curente.size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~